Drop outdated change

tests/Makefile.am

@@ -78,9 +78,6 @@ if STARPU_USE_CUDA
 if STARPU_COVERITY
 include $(top_srcdir)/starpu-mynvcc.mk
 else
-# TODO define NVCCFLAGS
-NVCC ?= nvcc
-
 NVCCFLAGS += -I$(top_srcdir)/include/ -I$(top_srcdir)/src -I$(top_builddir)/src -I$(top_builddir)/src/common -I$(top_builddir)/include $(HWLOC_CFLAGS) $(SIMGRID_CFLAGS)
 
 .cu.cubin: