fixup! [mlir][vector] Restrict DropInnerMostUnitDimsTransferRead

Switch to using isZeroIndex from StaticValueUtils.h

Author: banach-space

mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp

@@ -1295,17 +1295,7 @@ class DropInnerMostUnitDimsTransferRead
 
     // Make sure that the indixes to be dropped are equal 0.
     // TODO: Deal with cases when the indices are not 0.
-    auto isZeroIdx = [](Value idx) {
-      Attribute attr;
-      APInt value;
-      if (!matchPattern(idx, m_Constant(&attr)))
-        return false;
-      if (matchPattern(attr, m_ConstantInt(&value)))
-        if (!value.isZero())
-          return false;
-      return true;
-    };
-    if (!llvm::all_of(readOp.getIndices().take_back(dimsToDrop), isZeroIdx))
+    if (!llvm::all_of(readOp.getIndices().take_back(dimsToDrop), isZeroIndex))
       return failure();
 
     auto resultTargetVecType =