translate-all: remove redundant !tcg_enabled check in dump_exec_info

This check is redundant because it is already performed by the only
caller of dump_exec_info -- the caller was updated by b7da97ee
("monitor: Check whether TCG is enabled before running the "info jit"
code").

Checking twice wouldn't necessarily be too bad, but here the check also
returns with tb_lock held. So we can either do the check before tb_lock is
acquired, or just get rid of it. Given that it is redundant, I am going
for the latter option.
Signed-off-by: NEmilio G. Cota <cota@braap.org>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

accel/tcg/translate-all.c

@@ -1851,11 +1851,6 @@ void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
 
     tb_lock();
 
-    if (!tcg_enabled()) {
-        cpu_fprintf(f, "TCG not enabled\n");
-        return;
-    }
-
     target_code_size = 0;
     max_target_code_size = 0;
     cross_page = 0;