[mlir] Remove traits that require vector type support from ops in Complex dialect.

[akuegel]

Summary

Actually, no vector types are supported so far. We should add the traits once
the vector types are supported (e.g. ElementwiseMappable.traits).
Instead add Elementwise trait to each op.

mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td

 //===- ComplexOps.td - Complex op definitions ----------------*- tablegen -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef COMPLEX_OPS
 #define COMPLEX_OPS
 
 include "mlir/Dialect/Complex/IR/ComplexBase.td"
-include "mlir/Interfaces/VectorInterfaces.td"
 include "mlir/Interfaces/SideEffectInterfaces.td"
 
 class Complex_Op<string mnemonic, list<OpTrait> traits = []>
     : Op<Complex_Dialect, mnemonic, traits>;
 
 // Base class for standard arithmetic operations on complex numbers with a
 // floating-point element type. These operations take two operands and return
 // one result, all of which must be complex numbers of the same type.
 class ComplexArithmeticOp<string mnemonic, list<OpTrait> traits = []> :
     Complex_Op<mnemonic, traits # [NoSideEffect, SameOperandsAndResultType,
-    DeclareOpInterfaceMethods<VectorUnrollOpInterface>] #
-    ElementwiseMappable.traits> {
+    Elementwise]> {
   let arguments = (ins Complex<AnyFloat>:$lhs, Complex<AnyFloat>:$rhs);
   let results = (outs Complex<AnyFloat>:$result);
   let assemblyFormat = "$lhs `,` $rhs  attr-dict `:` type($result)";
   let verifier = ?;
 }
 
 // Base class for standard unary operations on complex numbers with a
 // floating-point element type. These operations take one operand and return
 // one result; the operand must be a complex number.
 class ComplexUnaryOp<string mnemonic, list<OpTrait> traits = []> :
-    Complex_Op<mnemonic, traits # [NoSideEffect]> {
+    Complex_Op<mnemonic, traits # [NoSideEffect, Elementwise]> {
   let arguments = (ins Complex<AnyFloat>:$complex);
   let assemblyFormat = "$complex attr-dict `:` type($complex)";
   let verifier = ?;
 }
 
 //===----------------------------------------------------------------------===//
 // AbsOp
 //===----------------------------------------------------------------------===//
def DivOp : ComplexArithmeticOp<"div"> {
   }];
 }
 
 //===----------------------------------------------------------------------===//
 // EqualOp
 //===----------------------------------------------------------------------===//
 
 def EqualOp : Complex_Op<"eq",
-    [NoSideEffect, AllTypesMatch<["lhs", "rhs"]>,
-    DeclareOpInterfaceMethods<VectorUnrollOpInterface>] #
-    ElementwiseMappable.traits> {
+    [NoSideEffect, AllTypesMatch<["lhs", "rhs"]>, Elementwise]> {
   let summary = "computes whether two complex values are equal";
   let description = [{
     The `eq` op takes two complex numbers and returns whether they are equal.
 
     Example:
 
     ```mlir
     %a = complex.eq %b, %c : complex<f32>
def MulOp : ComplexArithmeticOp<"mul"> {
   }];
 }
 
 //===----------------------------------------------------------------------===//
 // NotEqualOp
 //===----------------------------------------------------------------------===//
 
 def NotEqualOp : Complex_Op<"neq",
-    [NoSideEffect, AllTypesMatch<["lhs", "rhs"]>,
-    DeclareOpInterfaceMethods<VectorUnrollOpInterface>] #
-    ElementwiseMappable.traits> {
+    [NoSideEffect, AllTypesMatch<["lhs", "rhs"]>, Elementwise]> {
   let summary = "computes whether two complex values are not equal";
   let description = [{
     The `neq` op takes two complex numbers and returns whether they are not
     equal.
 
     Example:
 
     ```mlir