[PATCH] [compiler-rt] Remove struct_termio_sz from sanitizer_platform_limits_posix.cpp

[PATCH] [compiler-rt] Remove struct_termio_sz from sanitizer_platform_limits_posix.cpp

The `struct termio` and its associated code have been removed from glibc as they are considered obsolete. This change removes the corresponding code in compiler-rt to maintain compatibility.

Additionally, the check for `struct_termio_sz` specific to Android has been removed. There is no guarantee that the Linux kernel or Google will continue supporting `struct termio`, and its removal aligns with the deprecation in glibc.

Reference: glibc commit e04afb71771710cdc6025fe95908f5f17de7b72d

https://github.com/bminor/glibc/commit/e04afb71771710cdc6025fe95908f5f17de7b72d

Gbp-Pq: Name sanitizer-137440.patch