Bug 1470104 [wpt PR 11602] - Remove @manta12 from scroll-animations/META.yml, a=testonly

Automatic update from web-platform-testsRemove @manta12 from scroll-animations/META.yml (#11602)

Per https://github.com/web-platform-tests/wpt/pull/9828#discussion_r196975564.
--

wpt-commits: 920152c5b30a12bc3aac3783e886ddaf997756c3
wpt-pr: 11602

testing/web-platform/meta/MANIFEST.json

@@ -612244,7 +612244,7 @@
    "support"
   ],
   "scroll-animations/META.yml": [
-   "fab0b68ec248d2d69cdcec6085c07c6c6004b0a4",
+   "df377d2d8c7e81a85e1676b0ca9dd186837710a6",
    "support"
   ],
   "scroll-animations/idlharness.html": [

testing/web-platform/tests/scroll-animations/META.yml

@@ -1,4 +1,3 @@
 suggested_reviewers:
   - birtles
   - theres-waldo
-  - manta12