Remove pipeline statistics query feature

src/webgpu/api/operation/command_buffer/queries/README.txt

@@ -1,7 +1,5 @@
 TODO: test the behavior of creating/using/resolving queries.
-- pipeline statistics
-  TODO: pipeline statistics queries are removed from core; consider moving tests to another suite.
 - timestamp
-- nested (e.g. timestamp or PS query inside occlusion query), if any such cases are valid. Try
+- nested (e.g. timestamp inside occlusion query), if any such cases are valid. Try
   writing to the same query set (at same or different indices), if valid. Check results make sense.
 - start a query (all types) with no draw calls

src/webgpu/api/validation/capability_checks/features/query_types.spec.ts

@@ -14,7 +14,7 @@ g.test('createQuerySet')
   'timestamp-query'.
     - createQuerySet
       - type {occlusion, timestamp}
-      - x= {pipeline statistics, timestamp} query {enable, disable}
+      - x= timestamp query {enable, disable}
   `
   )
   .params(u =>

src/webgpu/api/validation/encoding/queries/begin_end.spec.ts

@@ -1,18 +1,5 @@
 export const description = `
 Validation for encoding begin/endable queries.
-
-TODO: pipeline statistics queries are removed from core; consider moving tests to another suite.
-TODO: tests for pipeline statistics queries:
-- balance: {
-    - begin 0, end 1
-    - begin 1, end 0
-    - begin 1, end 1
-    - begin 2, end 2
-    - }
-    - x= {
-        - render pass + pipeline statistics
-        - compute pass + pipeline statistics
-        - }
 `;
 
 import { makeTestGroup } from '../../../../../common/framework/test_group.js';
@@ -119,44 +106,12 @@ g.test('nesting')
   .desc(
     `
 Tests that whether it's allowed to nest various types of queries:
-- call {occlusion, pipeline-statistics, timestamp} query in same type or other type.
+- call {occlusion, timestamp} query in same type or other type.
   `
   )
   .paramsSubcasesOnly([
     { begin: 'occlusion', nest: 'timestamp', end: 'occlusion', _valid: true },
     { begin: 'occlusion', nest: 'occlusion', end: 'occlusion', _valid: false },
-    { begin: 'occlusion', nest: 'pipeline-statistics', end: 'occlusion', _valid: true },
-    {
-      begin: 'occlusion',
-      nest: 'pipeline-statistics',
-      end: 'pipeline-statistics',
-      _valid: true,
-    },
-    {
-      begin: 'pipeline-statistics',
-      nest: 'timestamp',
-      end: 'pipeline-statistics',
-      _valid: true,
-    },
-    {
-      begin: 'pipeline-statistics',
-      nest: 'pipeline-statistics',
-      end: 'pipeline-statistics',
-      _valid: false,
-    },
-    {
-      begin: 'pipeline-statistics',
-      nest: 'occlusion',
-      end: 'pipeline-statistics',
-      _valid: true,
-    },
-    { begin: 'pipeline-statistics', nest: 'occlusion', end: 'occlusion', _valid: true },
     { begin: 'timestamp', nest: 'occlusion', end: 'occlusion', _valid: true },
-    {
-      begin: 'timestamp',
-      nest: 'pipeline-statistics',
-      end: 'pipeline-statistics',
-      _valid: true,
-    },
   ] as const)
   .unimplemented();

src/webgpu/api/validation/encoding/queries/general.spec.ts

@@ -1,10 +1,5 @@
 export const description = `
-TODO: pipeline statistics queries are removed from core; consider moving tests to another suite.
-TODO:
-- Start a pipeline statistics query in all possible encoders:
-    - queryIndex {in, out of} range for GPUQuerySet
-    - GPUQuerySet {valid, invalid, device mismatched}
-    - x ={render pass, compute pass} encoder
+Validation for encoding queries.
 `;
 
 import { makeTestGroup } from '../../../../../common/framework/test_group.js';
@@ -19,7 +14,7 @@ g.test('occlusion_query,query_type')
   .desc(
     `
 Tests that set occlusion query set with all types in render pass descriptor:
-- type {occlusion (control case), pipeline statistics, timestamp}
+- type {occlusion (control case), timestamp}
 - {undefined} for occlusion query set in render pass descriptor
   `
   )
@@ -77,7 +72,7 @@ g.test('timestamp_query,query_type_and_index')
   .desc(
     `
 Tests that write timestamp to all types of query set on all possible encoders:
-- type {occlusion, pipeline statistics, timestamp}
+- type {occlusion, timestamp}
 - queryIndex {in, out of} range for GPUQuerySet
 - x= {non-pass} encoder
   `