Remove the use of d3dcompiler_43.dll.

chrome/angle.isolate

Index: chrome/angle.isolate
diff --git a/chrome/angle.isolate b/chrome/angle.isolate
index bf4a49f5a8bb633ed9ff61998b675eceba19151d..4b2d70d92eef227feb218b29c6bef807cd6c0399 100644
--- a/chrome/angle.isolate
+++ b/chrome/angle.isolate
@@ -15,14 +15,5 @@
         ],
       },
     }],
-    ['OS=="win" and target_arch=="ia32"', {
-      'variables': {
-        'isolate_dependency_tracked': [
-          # TODO(kbr): really need D3DCompiler_43.dll as well for XP,
-          # but ANGLE doesn't contain the rule which extracts this.
-          #'<(PRODUCT_DIR)/D3DCompiler_43.dll',
-        ],
-      },
-    }],
   ],
 }