Revert #325: freetype: install ft2build.h - already in include/freetyp2 directory

Signed-off-by: Ted Hess <thess@kitschensync.net>

libs/freetype/Makefile

@@ -58,7 +58,6 @@ define Build/InstallDev
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/freetype-config $(2)/bin/
 	$(INSTALL_DIR) $(1)/usr/include
 	$(CP) $(PKG_INSTALL_DIR)/usr/include/freetype2 $(1)/usr/include/
-	$(CP) $(PKG_INSTALL_DIR)/usr/include/ft2build.h $(1)/usr/include/
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libfreetype.{a,so*} $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig