blockdev: Belatedly remove driveopts

Unused since commit 9dfd7c7a.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

sysemu.h

@@ -178,7 +178,6 @@ typedef struct DriveInfo {
 #define MAX_SCSI_DEVS	7
 
 extern QTAILQ_HEAD(drivelist, DriveInfo) drives;
-extern QTAILQ_HEAD(driveoptlist, DriveOpt) driveopts;
 
 extern DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
 extern DriveInfo *drive_get_by_id(const char *id);

vl.c

@@ -173,7 +173,6 @@ int main(int argc, char **argv)
 static const char *data_dir;
 const char *bios_name = NULL;
 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
-struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
 DisplayType display_type = DT_DEFAULT;
 const char* keyboard_layout = NULL;