Revert "enable verbose build for cryptopp"

This reverts commit 86e756db.

Change-Id: I36b5a0925c0848a9f1d4b0d3527be97b5e31ab1c

contrib/src/cryptopp/rules.mak

@@ -33,5 +33,5 @@ endif
 .cryptopp: cryptopp toolchain.cmake
 	cd $< && rm GNUmakefile*
 	cd $< && $(HOSTVARS) $(CMAKE) . $(CRYPTOPP_CMAKECONF)
-	cd $< && $(MAKE) VERBOSE=1 install
+	cd $< && $(MAKE) install
 	touch $@