wgsl: Remove [[access]] and [[offset]] decorations

These have been deprecated, and their usages in Dawn, CTS and samples have been updated.

Fixed: tint:846
Change-Id: I74b831fd5be2e7ca02e8208835eac8beddcef9af
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54325
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>

src/resolver/decoration_validation_test.cc

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "src/ast/access_decoration.h"
 #include "src/ast/disable_validation_decoration.h"
 #include "src/ast/override_decoration.h"
 #include "src/ast/return_statement.h"

src/resolver/resolver.cc

@@ -17,7 +17,6 @@
 #include <algorithm>
 #include <utility>
 
-#include "src/ast/access_decoration.h"
 #include "src/ast/alias.h"
 #include "src/ast/array.h"
 #include "src/ast/assignment_statement.h"
@@ -243,16 +242,6 @@ bool Resolver::ResolveInternal() {
 
   for (auto* node : builder_->ASTNodes().Objects()) {
     if (marked_.count(node) == 0) {
-      if (node->IsAnyOf<ast::AccessDecoration, ast::StrideDecoration>()) {
-        // TODO(crbug.com/tint/724) - Remove once tint:724 is complete.
-        // ast::AccessDecorations are generated by the WGSL parser, used to
-        // build sem::AccessControls and then leaked.
-        // ast::StrideDecoration are used to build a sem::Arrays, but
-        // multiple arrays of the same stride, size and element type are
-        // currently de-duplicated by the type manager, and we leak these
-        // decorations.
-        continue;
-      }
       TINT_ICE(diagnostics_) << "AST node '" << node->TypeInfo().name
                              << "' was not reached by the resolver\n"
                              << "At: " << node->source() << "\n"