Regenerate gapic for Trace and remove dependency on gax#4799

Merged

chemelnucfin merged 4 commits intogoogleapis:masterfrom

chemelnucfin:regen-trace

Feb 2, 2018

Commits on Jan 26, 2018

Import trace_v1 and trace_v2 generated by artman
Jon Wayne Parrott
committed
Fix bug in autogen: invalid import paths in proto files
Jon Wayne Parrott
committed
Remove references to gax
Jon Wayne Parrott
committed

Commits on Jan 28, 2018

Trace: Fix tests after replacing gax with gapic
chemelnucfin
committed