[devicelab] remove raster cache benchmarks. (#156600)

Death to the raster cache!

Author: Jonah Williams

.ci.yaml

@@ -2384,16 +2384,6 @@ targets:
         ["devicelab","android","linux","mokey"]
       task_name: color_filter_with_unstable_child_perf__e2e_summary
 
-  # linux mokey benchmark
-  - name: Linux_mokey raster_cache_use_memory_perf__e2e_summary
-    recipe: devicelab/devicelab_drone
-    presubmit: false
-    timeout: 60
-    properties:
-      tags: >
-        ["devicelab","android","linux","mokey"]
-      task_name: raster_cache_use_memory_perf__e2e_summary
-
   # linux mokey benchmark
   - name: Linux_mokey shader_mask_cache_perf__e2e_summary
     recipe: devicelab/devicelab_drone

TESTOWNERS

@@ -85,7 +85,6 @@
 /dev/devicelab/bin/tasks/platform_views_scroll_perf__timeline_summary.dart @jtmcdole @flutter/engine
 /dev/devicelab/bin/tasks/platform_views_scroll_perf_impeller__timeline_summary.dart @bdero @flutter/engine
 /dev/devicelab/bin/tasks/plugin_dependencies_test.dart @stuartmorgan @flutter/tool
-/dev/devicelab/bin/tasks/raster_cache_use_memory_perf__e2e_summary.dart @flar @flutter/engine
 /dev/devicelab/bin/tasks/routing_test.dart @andrewkolos @flutter/tool
 /dev/devicelab/bin/tasks/shader_mask_cache_perf__e2e_summary.dart @flar @flutter/engine
 /dev/devicelab/bin/tasks/spell_check_test_ios.dart @camsim99 @flutter/android

dev/devicelab/bin/tasks/raster_cache_use_memory_perf__e2e_summary.dart

@@ -411,13 +411,6 @@ TaskFunction createColorFilterWithUnstableChildPerfE2ETest() {
   ).run;
 }
 
-TaskFunction createRasterCacheUseMemoryPerfE2ETest() {
-  return PerfTest.e2e(
-    '${flutterDirectory.path}/dev/benchmarks/macrobenchmarks',
-    'test/raster_cache_use_memory_perf_e2e.dart',
-  ).run;
-}
-
 TaskFunction createShaderMaskCachePerfE2ETest() {
   return PerfTest.e2e(
     '${flutterDirectory.path}/dev/benchmarks/macrobenchmarks',