Make test encoder test driver less likely to leak on failure.
Make test encoder test driver less likely to leak on failure.

Individual tests still need to be updated.

Change-Id: Ic433d0f742e13560b136f136b72b2a9973970d78

smarter/aom,luctrudeau/aom,luctrudeau/aom,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,GrokImageCompression/aom,smarter/aom,mbebenita/aom,mbebenita/aom,mbebenita/aom,mbebenita/aom,luctrudeau/aom,smarter/aom,mbebenita/aom,GrokImageCompression/aom,mbebenita/aom,luctrudeau/aom,luctrudeau/aom,mbebenita/aom,mbebenita/aom,GrokImageCompression/aom,luctrudeau/aom,mbebenita/aom,smarter/aom