chore: remove @kara from codeowners as she no longer works on material2 (#11092)

Author: josephperrott

.github/CODEOWNERS

@@ -1,6 +1,6 @@
 # Angular Material components
 /src/lib/*                                         @jelbourn
-/src/lib/autocomplete/**                           @kara @crisbeto
+/src/lib/autocomplete/**                           @crisbeto
 /src/lib/badge/**                                  @amcdnl
 /src/lib/bottom-sheet/**                           @jelbourn @crisbeto
 /src/lib/button-toggle/**                          @tinayuangao
@@ -13,18 +13,18 @@
 /src/lib/divider/**                                @jelbourn @crisbeto
 /src/lib/expansion/**                              @josephperrott @jelbourn
 /src/lib/form-field/**                             @mmalerba
-/src/lib/grid-list/**                              @kara @jelbourn
+/src/lib/grid-list/**                              @jelbourn
 /src/lib/icon/**                                   @jelbourn
 /src/lib/input/**                                  @mmalerba
 /src/lib/list/**                                   @jelbourn @crisbeto @devversion
-/src/lib/menu/**                                   @kara @crisbeto
+/src/lib/menu/**                                   @crisbeto
 /src/lib/paginator/**                              @andrewseguin
 /src/lib/prebuilt-themes/**                        @jelbourn
 /src/lib/progress-bar/**                           @jelbourn @crisbeto @josephperrott
 /src/lib/progress-spinner/**                       @jelbourn @crisbeto @josephperrott
 /src/lib/radio/**                                  @tinayuangao @devversion
 /src/lib/schematics/**                             @amcdnl
-/src/lib/select/**                                 @kara @crisbeto
+/src/lib/select/**                                 @crisbeto
 /src/lib/sidenav/**                                @mmalerba
 /src/lib/slide-toggle/**                           @devversion
 /src/lib/slider/**                                 @mmalerba
@@ -44,10 +44,10 @@
 /src/lib/core/datetime/**                          @mmalerba
 /src/lib/core/error/**                             @crisbeto @mmalerba
 /src/lib/core/gestures/**                          @jelbourn
-/src/lib/core/label/**                             @kara @mmalerba
+/src/lib/core/label/**                             @mmalerba
 /src/lib/core/line/**                              @jelbourn
-/src/lib/core/option/**                            @kara @crisbeto
-/src/lib/core/placeholder/**                       @kara @mmalerba
+/src/lib/core/option/**                            @crisbeto
+/src/lib/core/placeholder/**                       @mmalerba
 /src/lib/core/ripple/**                            @devversion
 /src/lib/core/selection/**                         @tinayuangao @jelbourn
 /src/lib/core/selection/pseudo*/**                 @crisbeto @jelbourn
@@ -94,7 +94,7 @@
 # Demo app
 /src/demo-app/*                                    @jelbourn
 /src/demo-app/a11y/**                              @tinayuangao
-/src/demo-app/autocomplete/**                      @kara @crisbeto
+/src/demo-app/autocomplete/**                      @crisbeto
 /src/demo-app/badge/**                             @amcdnl
 /src/demo-app/baseline/**                          @mmalerba
 /src/demo-app/bottom-sheet/**                      @jelbourn @crisbeto
@@ -114,12 +114,12 @@
 /src/demo-app/expansion/**                         @josephperrott
 /src/demo-app/focus-origin/**                      @mmalerba
 /src/demo-app/gestures/**                          @jelbourn
-/src/demo-app/grid-list/**                         @kara @jelbourn
+/src/demo-app/grid-list/**                         @jelbourn
 /src/demo-app/icon/**                              @jelbourn
 /src/demo-app/input/**                             @mmalerba
 /src/demo-app/list/**                              @jelbourn @crisbeto @devversion
 /src/demo-app/live-announcer/**                    @jelbourn
-/src/demo-app/menu/**                              @kara @crisbeto
+/src/demo-app/menu/**                              @crisbeto
 /src/demo-app/overlay/**                           @jelbourn @crisbeto
 /src/demo-app/paginator/**                         @andrewseguin
 /src/demo-app/platform/**                          @jelbourn @devversion
@@ -129,7 +129,7 @@
 /src/demo-app/radio/**                             @tinayuangao @devversion
 /src/demo-app/ripple/**                            @devversion
 /src/demo-app/screen-type/**                       @josephperrott
-/src/demo-app/select/**                            @kara @crisbeto
+/src/demo-app/select/**                            @crisbeto
 /src/demo-app/sidenav/**                           @mmalerba
 /src/demo-app/slide-toggle/**                      @devversion
 /src/demo-app/slider/**                            @mmalerba
@@ -152,11 +152,11 @@
 /e2e/components/dialog-e2e.spec.ts                 @jelbourn @crisbeto
 /e2e/components/expansion-e2e.spec.ts              @josephperrott @jelbourn
 /e2e/components/fullscreen-e2e.spec.ts             @jelbourn
-/e2e/components/grid-list-e2e.spec.ts              @kara @jelbourn
+/e2e/components/grid-list-e2e.spec.ts              @jelbourn
 /e2e/components/icon-e2e.spec.ts                   @jelbourn
 /e2e/components/input-e2e.spec.ts                  @mmalerba
 /e2e/components/list-e2e.spec.ts                   @jelbourn @crisbeto @devversion
-/e2e/components/menu-e2e.spec.ts                   @kara @crisbeto
+/e2e/components/menu-e2e.spec.ts                   @crisbeto
 /e2e/components/progress-bar-e2e.spec.ts           @jelbourn @crisbeto @josephperrott
 /e2e/components/progress-spinner-e2e.spec.ts       @jelbourn @crisbeto @josephperrott
 /e2e/components/radio-e2e.spec.ts                  @tinayuangao @devversion
@@ -173,10 +173,10 @@
 /src/e2e-app/dialog/**                             @jelbourn @crisbeto
 /src/e2e-app/e2e-app/**                            @jelbourn
 /src/e2e-app/fullscreen/**                         @jelbourn
-/src/e2e-app/grid-list/**                          @kara @jelbourn
+/src/e2e-app/grid-list/**                          @jelbourn
 /src/e2e-app/icon/**                               @jelbourn
 /src/e2e-app/input/**                              @mmalerba
-/src/e2e-app/menu/**                               @kara @crisbeto
+/src/e2e-app/menu/**                               @crisbeto
 /src/e2e-app/progress-bar/**                       @jelbourn @crisbeto @josephperrott
 /src/e2e-app/progress-spinner/**                   @jelbourn @crisbeto @josephperrott
 /src/e2e-app/radio/**                              @tinayuangao @devversion