APV: Remove apv_support flag check for VideoCapabilities

OEMs see the bug in which apv_support flag has different value when accessed from Java vs Native code.
While the root casue of this is unclear, it is safe to remove this flag check because the flag is in production (should be always set)

Bug: 438376773
Test: atest NativeAMediaCodecInfoTest
Flag: EXEMPT bugfix
Change-Id: Id8e6f0a6e59a0770920b29dfbcb89aa4e634e4af