icons: remove unused zap and pip icons

Origin commit data
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Commit: 9427999ab0
Author: vanhofen <vanhofen@gmx.de>
Date: 2018-01-04 (Thu, 04 Jan 2018)

Origin message was:
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- icons: remove unused zap and pip icons

data/icons/status/various/Makefile.am

@@ -10,8 +10,6 @@ install_DATA = \
 	mounted.png \
 	mute.png \
 	not_mounted.png \
-	pip.png \
 	rclock.png \
 	rec.png \
-	rec_gray.png \
-	zap.png
+	rec_gray.png

src/gui/widget/icons.h

@@ -154,8 +154,6 @@
 #define NEUTRINO_ICON_RESOLUTION_HD	"res_hd"
 #define NEUTRINO_ICON_RESOLUTION_SD	"res_sd"
 #define NEUTRINO_ICON_PERSONALIZE	"personalize"
-#define NEUTRINO_ICON_ZAP		"zap"
-#define NEUTRINO_ICON_PIP		"pip"
 #define NEUTRINO_ICON_STAR_ON		"star-on"
 #define NEUTRINO_ICON_STAR_OFF		"star-off"
 #define NEUTRINO_ICON_STARS_BG		"stars_bg" //NI