Remove unused dependencies

Remove xext and xft as a dependency since they are not currently used
and probably haven't been used a while.

Also remove freetype2 from the pkg-config list, while it is required by
pangocairo it should be included from the pkg-config --cflags call.

.travis.yml

@@ -1,6 +1,6 @@
 before_install:
     - sudo apt-get -qq update
-    - sudo apt-get install -y libdbus-1-dev libx11-dev libxinerama-dev libxft-dev libxss-dev libxdg-basedir-dev libglib2.0-dev libpango1.0-dev libcairo2-dev libfreetype6-dev libnotify-dev libgtk2.0-dev
+    - sudo apt-get install -y libdbus-1-dev libx11-dev libxinerama-dev libxss-dev libxdg-basedir-dev libglib2.0-dev libpango1.0-dev libcairo2-dev libnotify-dev libgtk2.0-dev
 dist: trusty
 sudo: required
 language: c

README.md

@@ -18,7 +18,6 @@ Dunst has a number of build dependencies that must be present before attempting
 
 - dbus
 - libxinerama
-- libxft
 - libxss
 - libxdg-basedir
 - glib

config.mk

@@ -25,9 +25,9 @@ endif
 CPPFLAGS += -D_DEFAULT_SOURCE -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS} ${INIFLAGS}
 CFLAGS   += -g --std=gnu99 -pedantic -Wall -Wno-overlength-strings -Os ${STATIC} ${CPPFLAGS} ${EXTRACFLAGS}
 
-pkg_config_packs := dbus-1 x11 freetype2 xext xft xscrnsaver \
+pkg_config_packs := dbus-1 x11 xscrnsaver \
                     "glib-2.0 >= 2.36" gio-2.0 \
-                    pango cairo pangocairo gdk-2.0
+                    pangocairo gdk-2.0
 
 # check if we need libxdg-basedir
 ifeq (,$(findstring STATIC_CONFIG,$(CFLAGS)))