[tint] Remove 'stride' from ir.proto

Removes the field, and reserves the number/name.

Fixes: 441321296
Change-Id: I0bc9bd486dd6867cc00285e781e193ca5b0dfd7b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/261117
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: James Price <jrprice@google.com>

src/tint/utils/protos/ir/ir.proto

diff --git a/src/tint/utils/protos/ir/ir.proto b/src/tint/utils/protos/ir/ir.proto
index abc0fe6..0f4c772 100644
--- a/src/tint/utils/protos/ir/ir.proto
+++ b/src/tint/utils/protos/ir/ir.proto
@@ -92,8 +92,9 @@
 }
 
 message TypeArray {
+    reserved 2;          // TODO(422199551): Remove in v2
+    reserved "stride";   // TODO(422199551): Remove in v2
     uint32 element = 1;  // Module.types
-    uint32 stride = 2;
     uint32 count = 3;
 }