build: remove redundant SOURCES assignments

index daf902b..ed01dbc 100644
@@ -20,29 +20,3 @@ noinst_PROGRAMS = \
 	watch_line_rising \
 	watch_line_value \
 	watch_multiple_line_values
-
-async_watch_line_value_SOURCES = async_watch_line_value.c
-
-find_line_by_name_SOURCES = find_line_by_name.c
-
-get_chip_info_SOURCES = get_chip_info.c
-
-get_line_info_SOURCES = get_line_info.c
-
-get_line_value_SOURCES = get_line_value.c
-
-get_multiple_line_values_SOURCES = get_multiple_line_values.c
-
-reconfigure_input_to_output_SOURCES = reconfigure_input_to_output.c
-
-toggle_line_value_SOURCES = toggle_line_value.c
-
-toggle_multiple_line_value_SOURCES = toggle_multiple_line_value.c
-
-watch_line_info_SOURCES = watch_line_info.c
-
-watch_line_rising_SOURCES = watch_line_rising.c
-
-watch_line_value_SOURCES = watch_line_value.c
-
-watch_multiple_line_values_SOURCES = watch_multiple_line_values.c

index 05dce79..5888873 100644
@@ -12,5 +12,4 @@ libgpiosim_la_CFLAGS = $(AM_CFLAGS) $(KMOD_CFLAGS) $(MOUNT_CFLAGS)
 libgpiosim_la_LDFLAGS = -version-info $(subst .,:,$(ABI_GPIOSIM_VERSION))
 libgpiosim_la_LDFLAGS += $(KMOD_LIBS) $(MOUNT_LIBS) -pthread
 
-gpiosim_selftest_SOURCES = gpiosim-selftest.c
 gpiosim_selftest_LDADD = libgpiosim.la

index 92a819f..40ea3a3 100644
@@ -18,18 +18,6 @@ endif
 
 bin_PROGRAMS = gpiodetect gpioinfo gpioget gpioset gpiomon gpionotify
 
-gpiodetect_SOURCES = gpiodetect.c
-
-gpioinfo_SOURCES = gpioinfo.c
-
-gpioget_SOURCES = gpioget.c
-
-gpioset_SOURCES = gpioset.c
-
-gpiomon_SOURCES = gpiomon.c
-
-gpionotify_SOURCES = gpionotify.c
-
 if WITH_TESTS
 
 noinst_SCRIPTS = gpio-tools-test.bash