Revert "msm8974: Reenable interactive sync"

 * Testing shows that this change is causing aggressive onlining
   of CPUs when not necessary, as well as quickly increasing all
   cores to the sync_freq prematurely.
 * With this patch, wake-from-suspend (no screen) will enable 3 CPUs
   at 1190MHz for simple wakeup cases, causing higher power consumption.
   Reverted, we see 2 cores at 300MHz for the same cases.

This reverts commit d83bca39ee006f86733916938af39f5239076882.

Change-Id: I8b4fb2b4f42f3fb3509d7f2fd0fc52cdb551e2fa