fate: vpx: Remove one redundant $(eval) invocation

tests/fate/vpx.mak

@@ -47,7 +47,8 @@ fate-vp8-size-change$(1): CMD = framemd5 $(2) -i $(TARGET_SAMPLES)/vp8/frame_siz
 fate-vp8-size-change$(1): REF = $(SRC_PATH)/tests/ref/fate/vp8-size-change
 endef
 
-$(eval $(call FATE_VP8_FULL))
-$(eval $(call FATE_VP8_FULL,-emu-edge,-flags +emu_edge))
+$(call FATE_VP8_FULL)
+$(call FATE_VP8_FULL,-emu-edge,-flags +emu_edge)
+
 FATE_SAMPLES_AVCONV-$(CONFIG_VP8_DECODER) += $(FATE_VP8-yes)
 fate-vp8: $(FATE_VP8-yes)