Remove unnecessary interface

Author: jfurtek

mlir/include/mlir/Dialect/Arith/IR/ArithOps.td

@@ -160,8 +160,7 @@ class Arith_IntBinaryOpWithOverflowFlags<string mnemonic, list<Trait> traits = [
 
 class Arith_IntBinaryOpWithExactFlag<string mnemonic, list<Trait> traits = []> :
     Arith_BinaryOp<mnemonic, traits #
-      [DeclareOpInterfaceMethods<InferIntRangeInterface, ["inferResultRanges"]>,
-       DeclareOpInterfaceMethods<ArithExactFlagInterface>]>,
+      [DeclareOpInterfaceMethods<InferIntRangeInterface, ["inferResultRanges"]>]>,
     Arguments<(ins SignlessIntegerOrIndexLike:$lhs,
                SignlessIntegerOrIndexLike:$rhs,
                UnitAttr:$isExact)>,

mlir/include/mlir/Dialect/Arith/IR/ArithOpsInterfaces.td

@@ -139,38 +139,4 @@ def ArithRoundingModeInterface : OpInterface<"ArithRoundingModeInterface"> {
   ];
 }
 
-def ArithExactFlagInterface : OpInterface<"ArithExactFlagInterface"> {
-  let description = [{
-    Access to op exact flag.
-  }];
-
-  let cppNamespace = "::mlir::arith";
-
-  let methods = [
-    InterfaceMethod<
-      /*desc=*/        "Returns whether the operation has the exact flag",
-      /*returnType=*/  "bool",
-      /*methodName=*/  "hasExactFlag",
-      /*args=*/        (ins),
-      /*methodBody=*/  [{}],
-      /*defaultImpl=*/ [{
-        auto op = cast<ConcreteOp>(this->getOperation());
-        return op.getIsExact();
-      }]
-      >,
-      StaticInterfaceMethod<
-      /*desc=*/        [{Returns the name of the 'exact' attribute
-                         for the operation}],
-      /*returnType=*/  "StringRef",
-      /*methodName=*/  "getExactAttrName",
-      /*args=*/        (ins),
-      /*methodBody=*/  [{}],
-      /*defaultImpl=*/ [{
-        return "isExact";
-      }]
-      >
-
-  ];
-}
-
 #endif // ARITH_OPS_INTERFACES