tests/Makefile.am: remove max_riffa

tests/Makefile.am

@@ -389,12 +389,6 @@ myPROGRAMS +=				\
 endif
 endif
 
-if STARPU_USE_FPGA
-myPROGRAMS +=				\
-	fpga/max_fpga			\
-	fpga/max_riffa
-endif
-
 MICROBENCHS = \
 	microbenchs/parallel_independent_homogeneous_tasks      \
 	microbenchs/parallel_independent_heterogeneous_tasks    \