Update Makefile to properly remove artifacts from DUT

Makefile

@@ -50,12 +50,9 @@ shaders:
 	@glslc -c ${NAME}.frag
 
 clean: check
-	@rm -f ${NAME}
-	@rm -f ${NAME}.png
-	@rm -f ${NAME}.vert.spv
-	@rm -f ${NAME}.frag.spv
+	@rm -f ${NAME} ${NAME}.png ${NAME}.vert.spv ${NAME}.frag.spv
 ifneq ($(target), local)
-	@ssh $(SSH_DUT) 'rm -f ~/${NAME} ~/${NAME}.png'
+	@ssh $(SSH_DUT) 'rm -f ~/${NAME} ~/${NAME}.png ~/${NAME}.vert.spv ~/${NAME}.frag.spv'
 endif
 
 check: