[gcc r16-2654] [sanitizer_common] Remove reference to obsolete termio ioctls (#138822)

[Sam James via Gcc-cvs]

https://gcc.gnu.org/g:dbe0ba6c90d53229613c7eb3f476580ae1b9aae1

commit r16-2654-gdbe0ba6c90d53229613c7eb3f476580ae1b9aae1
Author: Sam James <s...@gentoo.org>
Date:   Fri Jul 25 19:45:18 2025 +0100

    [sanitizer_common] Remove reference to obsolete termio ioctls (#138822)
    
    Cherry picked from LLVM commit c99b1bcd505064f2e086e6b1034ce0b0c91ea5b9.
    
    The termio ioctls are no longer used after commit 59978b21ad9c
    ("[sanitizer_common] Remove interceptors for deprecated struct termio
    (#137403)"), remove them.  Fixes this build error:
    
    
../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp:765:27:
 error: invalid application of ‘sizeof’ to incomplete type ‘__sanitizer::termio’
      765 |   unsigned IOCTL_TCGETA = TCGETA;
          |                           ^~~~~~
    
../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp:769:27:
 error: invalid application of ‘sizeof’ to incomplete type ‘__sanitizer::termio’
      769 |   unsigned IOCTL_TCSETA = TCSETA;
          |                           ^~~~~~
    
../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp:770:28:
 error: invalid application of ‘sizeof’ to incomplete type ‘__sanitizer::termio’
      770 |   unsigned IOCTL_TCSETAF = TCSETAF;
          |                            ^~~~~~~
    
../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp:771:28:
 error: invalid application of ‘sizeof’ to incomplete type ‘__sanitizer::termio’
      771 |   unsigned IOCTL_TCSETAW = TCSETAW;
          |                            ^~~~~~~

Diff:
---
 libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp | 4 ----
 libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h   | 4 ----
 2 files changed, 8 deletions(-)

diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp 
b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp
index 490e75fe8f65..9856ac3c3ec4 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp
@@ -762,13 +762,9 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
 #endif // SOUND_VERSION
   unsigned IOCTL_TCFLSH = TCFLSH;
-  unsigned IOCTL_TCGETA = TCGETA;
   unsigned IOCTL_TCGETS = TCGETS;
   unsigned IOCTL_TCSBRK = TCSBRK;
   unsigned IOCTL_TCSBRKP = TCSBRKP;
-  unsigned IOCTL_TCSETA = TCSETA;
-  unsigned IOCTL_TCSETAF = TCSETAF;
-  unsigned IOCTL_TCSETAW = TCSETAW;
   unsigned IOCTL_TCSETS = TCSETS;
   unsigned IOCTL_TCSETSF = TCSETSF;
   unsigned IOCTL_TCSETSW = TCSETSW;
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h 
b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
index a80df656826e..cfac4903b76b 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -1274,13 +1274,9 @@ extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
 extern unsigned IOCTL_SNDCTL_COPR_WCODE;
 extern unsigned IOCTL_SNDCTL_COPR_WDATA;
 extern unsigned IOCTL_TCFLSH;
-extern unsigned IOCTL_TCGETA;
 extern unsigned IOCTL_TCGETS;
 extern unsigned IOCTL_TCSBRK;
 extern unsigned IOCTL_TCSBRKP;
-extern unsigned IOCTL_TCSETA;
-extern unsigned IOCTL_TCSETAF;
-extern unsigned IOCTL_TCSETAW;
 extern unsigned IOCTL_TCSETS;
 extern unsigned IOCTL_TCSETSF;
 extern unsigned IOCTL_TCSETSW;