driver: Yet 1 more g_autofree conversion change

This is the last missing g_autofree conversion change in the module after
commit 1e2ae2e3 took care of the VIR_AUTOFREE conversion.
Signed-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

src/driver.c

@@ -48,7 +48,7 @@ virDriverLoadModule(const char *name,
                     const char *regfunc,
                     bool required)
 {
-    char *modfile = NULL;
+    g_autofree char *modfile = NULL;
     int ret;
 
     VIR_DEBUG("Module load %s", name);
@@ -62,9 +62,6 @@ virDriverLoadModule(const char *name,
         return -1;
 
     ret = virModuleLoad(modfile, regfunc, required);
-
-    VIR_FREE(modfile);
-
     return ret;
 }