Delete more unused includes in statsd

Test: build
Change-Id: Ie639f57f86c2573cd5e06a1fa9397487f4b3f235
Merged-In: Ie639f57f86c2573cd5e06a1fa9397487f4b3f235
(cherry picked from commit fd5b18820cbea67801d4fdd1562c3cb41e4ce578)
1 file changed