update tests

Author: changkhothuychung

libcxx/test/std/ranges/range.adaptors/range.concat/adaptor.pass.cpp

@@ -78,7 +78,6 @@ constexpr bool test() {
 
 int main(int, char**) {
   test();
-  static_assert(test());
 
   return 0;
 }

libcxx/test/std/ranges/range.adaptors/range.concat/end.pass.cpp

@@ -91,7 +91,6 @@ constexpr bool test() {
 
 int main(int, char**) {
   test();
-  static_assert(test());
 
   return 0;
 }

libcxx/test/std/ranges/range.adaptors/range.concat/iterator/compare.pass.cpp

@@ -71,6 +71,5 @@ constexpr bool tests() {
 
 int main(int, char**) {
   tests();
-  static_assert(tests());
   return 0;
 }