Fixes #1691. relational_A05_t01.dart. Remove wrong checks (#1717)

Author: sgrekhov

LanguageFeatures/Patterns/relational_A05_t01.dart

@@ -24,18 +24,10 @@ String test(List<num> list) {
     [> "1" && <= 2] => "case 1",
 //     ^^^
 // [analyzer] unspecified
-// [cfe] unspecified
-    [== "42"] => "case 2",
-//      ^^^^
-// [analyzer] unspecified
 // [cfe] unspecified
     [>= "10" && < 20] => "case 3",
 //      ^^^^
 // [analyzer] unspecified
-// [cfe] unspecified
-    [!= "100"] => "case 4",
-//      ^^^^^
-// [analyzer] unspecified
 // [cfe] unspecified
     [> 1 && <= true] => "case 5",
 //             ^^^^