Fix Helix jobs

- restore.cmd doesn't work well with `-projects`; script unconditionally adds `-all`

Author: dougbu

.azure/pipelines/ci.yml

@@ -635,7 +635,7 @@ stages:
       # Build the shared framework
       - script: ./build.cmd -ci -nobl -all -pack /p:ASPNETCORE_TEST_LOG_DIR=artifacts/log
         displayName: Build shared fx
-      - script: .\restore.cmd -ci -nobl /p:BuildInteropProjects=true
+      - script: ./build.cmd -ci -nobl -noBuildRepoTasks -restore -noBuild -projects src/Grpc/**/*.csproj
         displayName: Restore interop projects
       - script: ./build.cmd -ci -nobl -noBuildRepoTasks -noRestore -test -all -noBuildNative -projects eng\helix\helix.proj
                 /p:IsRequiredCheck=true /p:IsHelixJob=true /p:BuildInteropProjects=true /p:RunTemplateTests=true

.azure/pipelines/helix-matrix.yml

@@ -28,7 +28,7 @@ jobs:
     # Build the shared framework
     - script: ./build.cmd -ci -nobl -all -pack /p:ASPNETCORE_TEST_LOG_DIR=artifacts/log
       displayName: Build shared fx
-    - script: .\restore.cmd -ci /p:BuildInteropProjects=true
+    - script: ./build.cmd -ci -nobl -restore -noBuild -projects src/Grpc/**/*.csproj
       displayName: Restore interop projects
     - script: .\build.cmd -ci -nobl -NoRestore -test -all -projects eng\helix\helix.proj
               /p:IsHelixDaily=true /p:IsRequiredCheck=true /p:IsHelixJob=true /p:BuildInteropProjects=true

.azure/pipelines/quarantined-tests.yml

@@ -33,7 +33,7 @@ jobs:
     # Build the shared framework
     - script: ./build.cmd -ci -all -pack /p:ASPNETCORE_TEST_LOG_DIR=artifacts/log /bl:artifacts/log/helix.build.x64.binlog
       displayName: Build shared fx
-    - script: .\restore.cmd -ci /p:BuildInteropProjects=true
+    - script: ./build.cmd -ci -nobl -restore -noBuild -projects src/Grpc/**/*.csproj
       displayName: Restore interop projects
     - script: ./build.cmd -ci -noRestore -test -all -noBuildJava -noBuildNative -projects eng\helix\helix.proj
               /p:RunQuarantinedTests=true /p:IsRequiredCheck=true /p:IsHelixJob=true /p:BuildInteropProjects=true