Remove dalvik.vm.usejitprofiles system property.

Disabling profiles is no longer supported. Most of the profile support
has been active even when this property was false, and it won't be
supported in the ART Service.

(cherry-picked from commit bc4eddd3)

Test: Boot with dalvik.vm.usejitprofiles=false
Bug: 254434433
Merged-In: I8edcd02fd0db2553eef2badad6c3506579533bb5
Change-Id: I8edcd02fd0db2553eef2badad6c3506579533bb5