fate: vpx: Remove one redundant $(eval) invocation
Merge commit '23e6d3d4e27c83e06d00aa072c84d057bd1dad23'

* commit '23e6d3d4e27c83e06d00aa072c84d057bd1dad23':
  fate: vpx: Remove one redundant $(eval) invocation

Merge for meta data only as this breaks the affected fate tests

Merged-by: Michael Niedermayer <michaelni@gmx.at>