Removed old identity_qmr.cpp source file.
Removed old identity_qmr.cpp source file.

Monotone-Parent: a708ba636e4ca0722a7ec872d8b36a77a2bb7b01
Monotone-Revision: f3cb5304586510cbab8a088371dbb83e0af9bfc4

FrancisRussell/desola,FrancisRussell/desola,FrancisRussell/desola