V4L/DVB (5166): Remove obsolete alias defines of CONFIG_* settings

The out of tree v4l-dvb build system didn't always override the kernel's
configuration settings with v4l-dvb's settings correctly.  To work around
this, makefiles would define some new macro based on the setting of a
config variable.  e.g. the pwc Makefile would define CONFIG_PWC_DEBUG if
CONFIG_USB_PWC_DEBUG (which is defined via Kconfig) was set.
The v4l-dvb build system should now always override correctly, and this
is no longer necessary.  This patch gets ride of these extra defines and
just uses the CONFIG_* settings directly.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 9825fd3..27ed769 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -128,7 +128,7 @@
 static int default_fps = 10;
 static int default_fbufs = 3;   /* Default number of frame buffers */
        int pwc_mbufs = 2;	/* Default number of mmap() buffers */
-#if CONFIG_PWC_DEBUG
+#ifdef CONFIG_USB_PWC_DEBUG
        int pwc_trace = PWC_DEBUG_LEVEL;
 #endif
 static int power_save = 0;
@@ -1051,7 +1051,7 @@
 	video_device_remove_file(vdev, &class_device_attr_button);
 }
 
-#if CONFIG_PWC_DEBUG
+#ifdef CONFIG_USB_PWC_DEBUG
 static const char *pwc_sensor_type_to_string(unsigned int sensor_type)
 {
 	switch(sensor_type) {
@@ -1835,7 +1835,7 @@
 module_param(fps, int, 0444);
 module_param(fbufs, int, 0444);
 module_param(mbufs, int, 0444);
-#if CONFIG_PWC_DEBUG
+#ifdef CONFIG_USB_PWC_DEBUG
 module_param_named(trace, pwc_trace, int, 0644);
 #endif
 module_param(power_save, int, 0444);
@@ -1908,7 +1908,7 @@
 		default_fbufs = fbufs;
 		PWC_DEBUG_MODULE("Number of frame buffers set to %d.\n", default_fbufs);
 	}
-#if CONFIG_PWC_DEBUG
+#ifdef CONFIG_USB_PWC_DEBUG
 	if (pwc_trace >= 0) {
 		PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace);
 	}