Fix gcc build.

src/Functions/FunctionBinaryArithmetic.h

@@ -709,7 +709,7 @@ class FunctionBinaryArithmetic : public IFunction
         if (lhs_is_const && rhs_is_const)
             return ColumnConst::create(std::move(column_to), input_rows_count);
         else
-            return std::move(column_to);
+            return column_to;
     }
 
     ColumnPtr executeDateTimeIntervalPlusMinus(ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type,

src/Functions/FunctionsComparison.h

@@ -1053,7 +1053,7 @@ private:
             else
                 GenericComparisonImpl<Op<int, int>>::vectorVector(*c0, *c1, vec_res);
 
-            return std::move(c_res);
+            return c_res;
         }
     }
 

src/Functions/runningDifference.h

@@ -195,7 +195,7 @@ public:
         if (null_map_column)
             return ColumnNullable::create(std::move(res_column), null_map_column);
         else
-            return std::move(res_column);
+            return res_column;
     }
 };