[libc][bazel] Remove customization from several libc BUILD rules. (#121843) Get rid of the following arguments to libc_support_library and libc_function rules: * `defines` (for raw_mutex.h) - it wasn't used correctly (e.g. didn't provide actual value for spin count), and we can instead fallback to defaults set in the header itself (or rely on library-level configure options). * `features` - there's no need to disable sanitization for a subset of memory functions -- it generally should be the vendor / user responsibility to control it (e.g. don't include instrumented libc functions in the build, since they would be provided by sanitizer runtimes instead). * `local_defines` (for printf_parser) - no longer needed, since LIBC_COPT_MOCK_ARG_LIST has been removed in e0be78be427931e94d287002b9c3910f6bc6a22c This also removes two ad-hoc BUILD rules (strcpy_sanitized and printf_mock_parser) which are no longer needed and can be replaced by strcpy and printf_parser, respectively. Co-authored-by: Alexey Samsonov <samsonov@google.com>
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