cmake: Cleanup installation of the application icon

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 397d18e98a)

src/pics/CMakeLists.txt

@@ -5,11 +5,8 @@ install(
         harddisk.png thermometer.png computers.png
         ksensorsbackground.png thermometer18x18.png cooler.png
         ksensorsdocked.png cooler18x18.png ksensorssplash.png
-    
-    DESTINATION ${DATA_INSTALL_DIR}/${PROJECT_NAME}/pics       
-)
 
-tde_install_icons( lo32-app-ksensors.png lo16-app-ksensors.png
+    DESTINATION ${DATA_INSTALL_DIR}/${PROJECT_NAME}/pics
-                   hi32-app-ksensors.png hi16-app-ksensors.png
-                   ${PROJECT_NAME}
 )
+
+tde_install_icons( ${PROJECT_NAME} )