[mlir] Remove extra ';' outside of a function (NFC)

/llvm-project/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp:51:2:
error: extra ';' outside of a function is incompatible with C++98 [-Werror,-Wc++98-compat-extra-semi]
};
 ^
/llvm-project/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp:97:2:
error: extra ';' outside of a function is incompatible with C++98 [-Werror,-Wc++98-compat-extra-semi]
};
 ^
2 errors generated.

Author: DamonFool

mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp

@@ -48,7 +48,7 @@ LLVMTypeConverter::LLVMTypeConverter(MLIRContext *ctx,
 static bool isBarePointer(ValueRange values) {
   return values.size() == 1 &&
          isa<LLVM::LLVMPointerType>(values.front().getType());
-};
+}
 
 /// Pack SSA values into an unranked memref descriptor struct.
 static Value packUnrankedMemRefDesc(OpBuilder &builder,
@@ -94,7 +94,7 @@ static Value unrankedMemRefMaterialization(OpBuilder &builder,
     return Value();
   return builder.create<UnrealizedConversionCastOp>(loc, resultType, packed)
       .getResult(0);
-};
+}
 
 /// MemRef descriptor elements -> MemRefType
 static Value rankedMemRefMaterialization(OpBuilder &builder,