Delete invalid assertion (#4695)

* delete invalid assertion

* recover

shardingsphere-sql-parser/shardingsphere-sql-parser-test/src/test/java/org/apache/shardingsphere/sql/parser/integrate/asserts/segment/assignment/AssignmentValueAssert.java

@@ -49,7 +49,5 @@ public final class AssignmentValueAssert {
         } else if (actual instanceof ExpressionProjectionSegment) {
             ExpressionAssert.assertCommonExpression(assertContext, (ExpressionProjectionSegment) actual, expected.getCommonExpression());
         }
-        // TODO assert start index and stop index
-        //        SQLSegmentAssert.assertIs(assertContext, actual, expected);
     }
 }

shardingsphere-sql-parser/shardingsphere-sql-parser-test/src/test/java/org/apache/shardingsphere/sql/parser/integrate/asserts/segment/orderby/OrderByItemAssert.java

@@ -81,8 +81,6 @@ public final class OrderByItemAssert {
                 count++;
             }
         }
-        // TODO assert start index and stop index
-        //        SQLSegmentAssert.assertIs(assertContext, actual, expected);
     }
     
     private static void assertOrderInfo(final SQLCaseAssertContext assertContext, final OrderByItemSegment actual, final ExpectedOrderByItem expected, final String type) {