build: Remove Makefile-gvc.am

This is now unused, and potentially confusing.

https://bugzilla.gnome.org/show_bug.cgi?id=689955

src/Makefile-gvc.am

@@ -1,52 +0,0 @@
-noinst_LTLIBRARIES += libgvc.la
-
-libgvc_la_CPPFLAGS =			\
-	$(WARN_CFLAGS)			\
-	$(GVC_CFLAGS)			\
-	-I$(srcdir)/gvc/		\
-	-DWITH_INTROSPECTION		\
-	-DG_LOG_DOMAIN="\"Gvc\""
-
-libgvc_la_LIBADD =			\
-	$(GVC_LIBS)
-
-libgvc_la_LDFLAGS = -avoid-version
-
-libgvc_la_gir_sources = \
-	gvc/gvc-mixer-stream.h		\
-	gvc/gvc-mixer-stream.c		\
-	gvc/gvc-channel-map.h		\
-	gvc/gvc-channel-map.c		\
-	gvc/gvc-mixer-card.c		\
-	gvc/gvc-mixer-card.h		\
-	gvc/gvc-mixer-sink.h		\
-	gvc/gvc-mixer-sink.c		\
-	gvc/gvc-mixer-source.h		\
-	gvc/gvc-mixer-source.c		\
-	gvc/gvc-mixer-sink-input.h	\
-	gvc/gvc-mixer-sink-input.c	\
-	gvc/gvc-mixer-source-output.h	\
-	gvc/gvc-mixer-source-output.c	\
-	gvc/gvc-mixer-event-role.h	\
-	gvc/gvc-mixer-event-role.c	\
-	gvc/gvc-mixer-control.h		\
-	gvc/gvc-mixer-control.c
-
-libgvc_la_private_sources = 		\
-	gvc/gvc-mixer-stream-private.h	\
-	gvc/gvc-channel-map-private.h	\
-	gvc/gvc-mixer-card-private.h	\
-	gvc/gvc-mixer-control-private.h	\
-	gvc/gvc-pulseaudio-fake.h
-
-libgvc_la_SOURCES =			\
-	$(libgvc_la_gir_sources)	\
-	$(libgvc_la_private_sources)
-
-Gvc-1.0.gir: libgvc.la
-Gvc_1_0_gir_INCLUDES = GObject-2.0 Gio-2.0
-Gvc_1_0_gir_CFLAGS = $(INCLUDES) -I$(srcdir)/gvc -DWITH_INTROSPECTION
-Gvc_1_0_gir_LIBS = libgvc.la
-Gvc_1_0_gir_FILES = $(addprefix $(srcdir)/,$(libgvc_la_gir_sources))
-INTROSPECTION_GIRS += Gvc-1.0.gir
-CLEANFILES += Gvc-1.0.gir