Remove musl-tld-caching patch since it's now provided by the repository.

portage/patches/www-client/chromium/musl-tid-caching.patch

@@ -1,83 +0,0 @@
-diff --git a/sandbox/linux/services/namespace_sandbox.cc b/sandbox/linux/services/namespace_sandbox.cc
-index d46ea08..fbedde1 100644
---- a/sandbox/linux/services/namespace_sandbox.cc
-+++ b/sandbox/linux/services/namespace_sandbox.cc
-@@ -209,6 +209,70 @@ base::Process NamespaceSandbox::LaunchProcessWithOptions(
-   return base::LaunchProcess(argv, launch_options_copy);
- }
- 
-+#if defined(__aarch64__)
-+#define TLS_ABOVE_TP
-+#endif
-+
-+struct musl_pthread
-+{
-+  /* Part 1 -- these fields may be external or
-+  * internal (accessed via asm) ABI. Do not change. */
-+  struct pthread *self;
-+#ifndef TLS_ABOVE_TP
-+  uintptr_t *dtv;
-+#endif
-+  struct pthread *prev, *next; /* non-ABI */
-+  uintptr_t sysinfo;
-+#ifndef TLS_ABOVE_TP
-+#ifdef CANARY_PAD
-+  uintptr_t canary_pad;
-+#endif
-+  uintptr_t canary;
-+#endif
-+
-+/* Part 2 -- implementation details, non-ABI. */
-+  int tid;
-+  int errno_val;
-+  volatile int detach_state;
-+  volatile int cancel;
-+  volatile unsigned char canceldisable, cancelasync;
-+  unsigned char tsd_used:1;
-+  unsigned char dlerror_flag:1;
-+  unsigned char *map_base;
-+  size_t map_size;
-+  void *stack;
-+  size_t stack_size;
-+  size_t guard_size;
-+  void *result;
-+  struct __ptcb *cancelbuf;
-+  void **tsd;
-+  struct {
-+    volatile void *volatile head;
-+    long off;
-+    volatile void *volatile pending;
-+  } robust_list;
-+  int h_errno_val;
-+  volatile int timer_id;
-+  locale_t locale;
-+  volatile int killlock[1];
-+  char *dlerror_buf;
-+  void *stdio_locks;
-+
-+  /* Part 3 -- the positions of these fields relative to
-+  * the end of the structure is external and internal ABI. */
-+#ifdef TLS_ABOVE_TP
-+  uintptr_t canary;
-+  uintptr_t *dtv;
-+#endif
-+};
-+
-+void MaybeUpdateMuslTidCache()
-+{
-+  pid_t real_tid = sys_gettid();
-+  pid_t* cached_tid_location = &reinterpret_cast<struct musl_pthread*>(pthread_self())->tid;
-+  *cached_tid_location = real_tid;
-+}
-+
- // static
- pid_t NamespaceSandbox::ForkInNewPidNamespace(bool drop_capabilities_in_child) {
-   const pid_t pid =
-@@ -226,6 +290,7 @@ pid_t NamespaceSandbox::ForkInNewPidNamespace(bool drop_capabilities_in_child) {
- #if defined(LIBC_GLIBC)
-     MaybeUpdateGlibcTidCache();
- #endif
-+    MaybeUpdateMuslTidCache();
-     return 0;
-   }
-