[build] Remove unused RES_IMAGES

src/Makefile.qt.include

@@ -276,8 +276,6 @@ if ENABLE_WALLET
 BITCOIN_QT_CPP += $(BITCOIN_QT_WALLET_CPP)
 endif # ENABLE_WALLET
 
-RES_IMAGES =
-
 RES_MOVIES = $(wildcard $(srcdir)/qt/res/movies/spinner-*.png)
 
 BITCOIN_RC = qt/res/bitcoin-qt-res.rc
@@ -290,7 +288,7 @@ qt_libbitcoinqt_a_CXXFLAGS = $(AM_CXXFLAGS) $(QT_PIE_FLAGS)
 qt_libbitcoinqt_a_OBJCXXFLAGS = $(AM_OBJCXXFLAGS) $(QT_PIE_FLAGS)
 
 qt_libbitcoinqt_a_SOURCES = $(BITCOIN_QT_CPP) $(BITCOIN_QT_H) $(QT_FORMS_UI) \
-  $(QT_QRC) $(QT_QRC_LOCALE) $(QT_TS) $(RES_ICONS) $(RES_IMAGES) $(RES_MOVIES)
+  $(QT_QRC) $(QT_QRC_LOCALE) $(QT_TS) $(RES_ICONS) $(RES_MOVIES)
 if TARGET_DARWIN
   qt_libbitcoinqt_a_SOURCES += $(BITCOIN_MM)
 endif
@@ -361,7 +359,7 @@ $(QT_QRC_LOCALE_CPP): $(QT_QRC_LOCALE) $(QT_QM)
 	  $(SED) -e '/^\*\*.*Created:/d' -e '/^\*\*.*by:/d' > $@
 	@rm $(@D)/temp_$(<F)
 
-$(QT_QRC_CPP): $(QT_QRC) $(QT_FORMS_H) $(RES_ICONS) $(RES_IMAGES) $(RES_MOVIES)
+$(QT_QRC_CPP): $(QT_QRC) $(QT_FORMS_H) $(RES_ICONS) $(RES_MOVIES)
 	@test -f $(RCC)
 	$(AM_V_GEN) QT_SELECT=$(QT_SELECT) $(RCC) -name bitcoin $< | \
 	  $(SED) -e '/^\*\*.*Created:/d' -e '/^\*\*.*by:/d' > $@