[autotest] Move power to pool:suites.

I can't seem to remember any reason why pool:power existed in the first
place?  We dont seem to be keeping up with adding new devices to this
pool anyway, so we might as well merge it with pool:suites to save us
the troubles.

BUG=None
TEST=sanity

Change-Id: I15fed63baae5f6195f3fd8ba0442fcd2981fc246
Reviewed-on: https://chromium-review.googlesource.com/194382
Tested-by: Alex Miller <milleral@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Alex Miller <milleral@chromium.org>
diff --git a/suite_scheduler.ini b/suite_scheduler.ini
index 5bfe95b..f985a33 100644
--- a/suite_scheduler.ini
+++ b/suite_scheduler.ini
@@ -23,7 +23,7 @@
 run_on: weekly
 suite: power_requirements
 branch_specs: >=R22
-pool: power
+pool: suites
 
 [WeeklyVideoRegressions]
 run_on: weekly
@@ -164,7 +164,7 @@
 run_on: nightly
 suite: power_daily
 branch_specs: >=R21
-pool: power
+pool: suites
 
 [Perfalerts]
 # Not a part of perf build because it requires 3 machines.
@@ -184,7 +184,7 @@
 run_on: new_build
 suite: power_build
 branch_specs: >=R21
-pool: power
+pool: suites
 
 [pagecycler]
 run_on: new_build