Staging: hv: remove Sources.c

It's a .c file including other .c files, ick.
Remove that mess now that the header files are unwound.

Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/hv/Channel.c b/drivers/staging/hv/Channel.c
index 89ddbf1..a8398a2 100644
--- a/drivers/staging/hv/Channel.c
+++ b/drivers/staging/hv/Channel.c
@@ -22,6 +22,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/mm.h>
 #include "include/osd.h"
 #include "include/logging.h"