[gcc r12-7911] options, '-Wc++[...]-extensions': Remove undefined one-argument 'LangEnabledBy' option properties

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:0087f3600be51167f6bcaf2d887b0ac8a320ede2

commit r12-7911-g0087f3600be51167f6bcaf2d887b0ac8a320ede2
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Sat Mar 26 22:21:14 2022 +0100

    options, '-Wc++[...]-extensions': Remove undefined one-argument 'LangEnabledBy' option properties
    
    A one-argument form of the 'LangEnabledBy' option property isn't defined,
    and effectively appears to be a no-op.  Removing these only changes
    'build-gcc/gcc/optionlist' accordingly, but no other generated files.
    
    Clean-up for commit ee336ecb2a7161bc28f6c5343d97870a8d15e177
    "c++: Add new warning options for C++ language mismatches".
    
            gcc/c-family/
            * c.opt (Wc++11-extensions, Wc++14-extensions, Wc++17-extensions)
            (Wc++20-extensions, Wc++23-extensions): Remove 'LangEnabledBy'
            option properties.

Diff:
---
 gcc/c-family/c.opt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index 1034a1b3946..07da40ef43b 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -459,23 +459,23 @@ C++ ObjC++ Var(warn_cxx20_compat) Warning LangEnabledBy(C++ ObjC++,Wall)
 Warn about C++ constructs whose meaning differs between ISO C++ 2017 and ISO C++ 2020.
 
 Wc++11-extensions
-C++ ObjC++ Var(warn_cxx11_extensions) Warning LangEnabledBy(C++ ObjC++) Init(1)
+C++ ObjC++ Var(warn_cxx11_extensions) Warning Init(1)
 Warn about C++11 constructs in code compiled with an older standard.
 
 Wc++14-extensions
-C++ ObjC++ Var(warn_cxx14_extensions) Warning LangEnabledBy(C++ ObjC++) Init(1)
+C++ ObjC++ Var(warn_cxx14_extensions) Warning Init(1)
 Warn about C++14 constructs in code compiled with an older standard.
 
 Wc++17-extensions
-C++ ObjC++ Var(warn_cxx17_extensions) Warning LangEnabledBy(C++ ObjC++) Init(1)
+C++ ObjC++ Var(warn_cxx17_extensions) Warning Init(1)
 Warn about C++17 constructs in code compiled with an older standard.
 
 Wc++20-extensions
-C++ ObjC++ Var(warn_cxx20_extensions) Warning LangEnabledBy(C++ ObjC++) Init(1)
+C++ ObjC++ Var(warn_cxx20_extensions) Warning Init(1)
 Warn about C++20 constructs in code compiled with an older standard.
 
 Wc++23-extensions
-C++ ObjC++ Var(warn_cxx23_extensions) Warning LangEnabledBy(C++ ObjC++) Init(1)
+C++ ObjC++ Var(warn_cxx23_extensions) Warning Init(1)
 Warn about C++23 constructs in code compiled with an older standard.
 
 Wcast-function-type