verification/rvgen: Remove unused variable declaration from containers

The monitor container source files contained a declaration and a
definition for the rv_monitor variable. The former is superfluous and
can be removed.

Remove the variable declaration from the template as well as the
existing monitor containers.

Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20251126104241.291258-9-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>

kernel/trace/rv/monitors/rtapp/rtapp.c

@@ -8,8 +8,6 @@
 
 #include "rtapp.h"
 
-struct rv_monitor rv_rtapp;
-
 struct rv_monitor rv_rtapp = {
 	.name = "rtapp",
 	.description = "Collection of monitors for detecting problems with real-time applications",

kernel/trace/rv/monitors/sched/sched.c

@@ -8,8 +8,6 @@
 
 #include "sched.h"
 
-struct rv_monitor rv_sched;
-
 struct rv_monitor rv_sched = {
 	.name = "sched",
 	.description = "container for several scheduler monitor specifications.",

tools/verification/rvgen/rvgen/templates/container/main.c

@@ -8,8 +8,6 @@
 
 #include "%%MODEL_NAME%%.h"
 
-struct rv_monitor rv_%%MODEL_NAME%%;
-
 struct rv_monitor rv_%%MODEL_NAME%% = {
 	.name = "%%MODEL_NAME%%",
 	.description = "%%DESCRIPTION%%",