Don't set SK_MALLOC_TEMP in SkAutoTMalloc.

Unlike SkAutoSTMalloc, it doesn't make sense for SkAutoTMalloc to set
SK_MALLOC_TEMP.  See SkAutoMalloc/SkAutoSMalloc for similar in the void*
world.(This change is a documentation-only no-op.  No code pays any
attention to SK_MALLOC_TEMP.)

BUG=skia:
R=halcanary@google.com

Review URL: https://codereview.chromium.org/356913003
1 file changed