Do not hide _ZSt21ios_base_library_initv

The symbol should not be hidden:
https://bugzilla.redhat.com/show_bug.cgi?id=2188013

Resolves: RHEL-54138

gcc14-libstdc++-compat.patch

@@ -825,7 +825,7 @@
 +#include "../c++98/locale_facets.cc"
 --- libstdc++-v3/src/nonshared98/ios_init.cc.jj	2024-07-18 16:10:38.324406775 +0200
 +++ libstdc++-v3/src/nonshared98/ios_init.cc	2024-07-18 18:09:02.166562200 +0200
-@@ -0,0 +1,41 @@
+@@ -0,0 +1,38 @@
 +// Copyright (C) 1997-2024 Free Software Foundation, Inc.
 +//
 +// This file is part of the GNU ISO C++ Library.  This library is free
@@ -864,9 +864,6 @@
 +
 +_GLIBCXX_END_NAMESPACE_VERSION
 +} // namespace
-+#ifdef __powerpc64__
-+asm (".hidden _ZSt21ios_base_library_initv");
-+#endif
 --- libstdc++-v3/src/nonshared98/Makefile.am.jj	2024-07-18 16:10:38.324406775 +0200
 +++ libstdc++-v3/src/nonshared98/Makefile.am	2024-07-19 12:01:12.820878679 +0200
 @@ -0,0 +1,102 @@