Move all leak info functions to android_mallopt.

Bug: 130028357

Test: malloc_hooks unit tests.
Test: Enable backtrace for mediaserver, run dumpsys media.player -m
Test: Enable backtrace for calendar, run am dumpheap -n <PID> <FILE>
Change-Id: I6774e28ccd9b3f2310127a5b39ccd15fe696a787
Merged-In: I6774e28ccd9b3f2310127a5b39ccd15fe696a787
(cherry picked from commit 3aadc5e80a5e2cf6b6760ed90d528709223bb449)
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 55ca9dc..f0fccf5 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1473,15 +1473,10 @@
     malloc_enable; # apex
     malloc_iterate; # apex
 
-    # Used by libmediautils
-    write_malloc_leak_info; # apex
-    free_malloc_leak_info; # apex
-    get_malloc_leak_info; # apex
-
     # Used by libandroid_net
     android_getaddrinfofornet; # apex
 
-    # Used by libandroid_runtime and libmedia
+    # Used by libandroid_runtime, libmedia and libmediautils
     android_mallopt; # apex
 } LIBC_P;