Revert "[speech_synthesis] use libchromeos.pc"

This reverts commit 440985edf710ccb569ea6e0047452581bf698f0e

Change-Id: I089e1b7e742d226f68d247be15c623d9036b7995
Reviewed-on: https://gerrit.chromium.org/gerrit/14113
Reviewed-by: Scott James Remnant <keybuk@chromium.org>
Tested-by: Scott James Remnant <keybuk@chromium.org>
diff --git a/Makefile b/Makefile
index 17f0b10..a3488b2 100644
--- a/Makefile
+++ b/Makefile
@@ -13,9 +13,9 @@
 	-I/build/x86_generic/usr/include \
 	-L/build/x86_generic/usr/lib
 
-PC_DEPS = gobject-2.0 dbus-1 dbus-glib-1 libchromeos
-INCLUDE_DIRS=-I.. $(shell $(PKG_CONFIG) --cflags $(PC_DEPS))
-LIB_DIRS=$(shell $(PKG_CONFIG) --libs $(PC_DEPS))
+INCLUDE_DIRS=-I -I.. \
+	$(shell $(PKG_CONFIG) --cflags gobject-2.0 dbus-1 dbus-glib-1)
+LIB_DIRS=-L $(shell $(PKG_CONFIG) --libs gobject-2.0 dbus-1 dbus-glib-1)
 
 DBUS_SOURCE=speech_synthesizer.xml
 DBUS_SERVER=bindings/server.h