CLEANUP: h3: Unreachable target in h3_uqs_init()

This should fix Coverity CID 375045 in GH #1536 which detects a no more
use "err" target in h3_uqs_init()
diff --git a/src/h3.c b/src/h3.c
index d72f082..2e4a64c 100644
--- a/src/h3.c
+++ b/src/h3.c
@@ -770,7 +770,6 @@
 	h3_uqs->wait_event.tasklet->context = h3_uqs;
 	return 1;
 
- err:
 	tasklet_free(h3_uqs->wait_event.tasklet);
 	return 0;
 }