Revert "Restore posix_memalign"

This reverts commit bfc1d97531fa611ad2705c7179134b60e652ead4.
diff --git a/libc/bionic/malloc_debug_common.c b/libc/bionic/malloc_debug_common.c
index 2f4e55b..9333de9 100644
--- a/libc/bionic/malloc_debug_common.c
+++ b/libc/bionic/malloc_debug_common.c
@@ -210,11 +210,6 @@
     return dlpvalloc(bytes);
 }
 
-int posix_memalign(void** memptr, size_t alignment, size_t size)
-{
-    return dlposix_memalign(memptr, alignment, size);
-}
-
 /* Support for malloc debugging.
  * Note that if USE_DL_PREFIX is not defined, it's assumed that memory
  * allocation routines are implemented somewhere else, so all our custom