[committed] libstdc++: Remove c++26 dg-error lines for -Wdelete-incomplete errors

[Jonathan Wakely]

This fixes:
FAIL: tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc  -std=gnu++26  (test for errors, line 283)
FAIL: tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc  -std=gnu++26  (test for errors, line 305)

This is another consequence of r16-133-g8acea9ffa82ed8 which prevents
the -Wdelete-incomplete errors that happen after the first error.

libstdc++-v3/ChangeLog:

	* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
	Remove dg-error directives for additional c++26 errors.
---

Tested x86_64-linux. Pushed to trunk.

 .../tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc       | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc b/libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc
index 7b5ede4f00a..03fad1486c7 100644
--- a/libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc
+++ b/libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc
@@ -39,9 +39,6 @@ void test01()
   // { dg-error "incomplete" "" { target *-*-* } 600 }
 }
 
-// { dg-error "-Wdelete-incomplete" "" { target c++26 } 283 }
-// { dg-error "-Wdelete-incomplete" "" { target c++26 } 305 }
-
 // Ignore additional diagnostic given with -Wsystem-headers:
 // { dg-prune-output "has incomplete type" }
 // { dg-prune-output "possible problem detected" }
-- 
2.49.0