soc: fsl: qbman: remove unused struct 'cgr_comp'

'cgr_comp' has been unused since
commit 96f413f4 ("soc/fsl/qbman: fix issue in
qman_delete_cgr_safe()").

Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240528231123.136664-1-linux@treblig.org

drivers/soc/fsl/qbman/qman.c

@@ -2546,11 +2546,6 @@ int qman_delete_cgr(struct qman_cgr *cgr)
 }
 EXPORT_SYMBOL(qman_delete_cgr);
 
-struct cgr_comp {
-	struct qman_cgr *cgr;
-	struct completion completion;
-};
-
 static void qman_delete_cgr_smp_call(void *p)
 {
 	qman_delete_cgr((struct qman_cgr *)p);