[MLIR] Apply clang-tidy fixes for readability-container-size-empty in LinalgOps.cpp (NFC)

Author: joker-eph

mlir/lib/Dialect/Linalg/IR/LinalgOps.cpp

@@ -2091,7 +2091,7 @@ LogicalResult TransposeOp::fold(FoldAdaptor adaptor,
     return failure();
 
   // Single dimension transpose.
-  if (getPermutation().size() == 0) {
+  if (getPermutation().empty()) {
     result.push_back(getInput());
     return success();
   }