Remove obsolete APF_NEW_RA_FILTER_VERSION flag.

This commit removes the obsolete APF_NEW_RA_FILTER_VERSION flag from
ApfIntegrationTest. The LegacyApfFilter has been deprecated, rendering
this flag unnecessary.

Test: TH
Change-Id: Ia7da139a0f0af5f6e59012fb6dac35590133c1a6
1 file changed