Remove Useless filtering.The string for filtering rules should not point to a stack space

==1805058==ERROR: AddressSanitizer: heap-use-after-free on address 0xe18126a0 at pc 0x52b06320 bp 0xd7b13ee8 sp 0xd7b13ed8
READ of size 1 at 0xe18126a0 thread T0
    #0 0x52b0631f in tre_parse regex/regcomp.c:1356
    #1 0x52b2b1d0 in regcomp regex/regcomp.c:3710
    apache#2 0x48f55435 in c_regexmatch cmocka/src/cmocka.c:494
    apache#3 0x48f65bcf in _cmocka_run_group_tests cmocka/src/cmocka.c:3252
    apache#4 0x48f67e2d in cmocka_fs_test_main apps/testing/testsuites/kernel/fs/cmocka_fs_test.c:201
    apache#5 0x46210b2a in nxtask_startup sched/task_startup.c:72
    apache#6 0x45ff40fb in nxtask_start task/task_start.c:116
    apache#7 0x462695bb in pre_start sim/sim_initialstate.c:52

Signed-off-by: zhangshoukui <zhangshoukui@xiaomi.com>

Author: Zhangshoukui

testing/drivertest/drivertest_framebuffer.c

@@ -532,7 +532,6 @@ int main(int argc, FAR char *argv[])
   /* Initialize the state data */
 
   struct fb_state_s fb_state;
-  char test_filter[64];
 
   memset(&fb_state, 0, sizeof(struct fb_state_s));
   snprintf(fb_state.devpath, sizeof(fb_state.devpath), "%s",
@@ -552,9 +551,5 @@ int main(int argc, FAR char *argv[])
                                              fb_teardown, &fb_state),
   };
 
-  snprintf(test_filter, sizeof(test_filter), "test_case_fb_%d",
-           fb_state.test_case_id);
-  cmocka_set_test_filter(test_filter);
-
   return cmocka_run_group_tests(tests, NULL, NULL);
 }

testing/drivertest/drivertest_lcd.c

@@ -418,7 +418,6 @@ int main(int argc, FAR char *argv[])
   /* Initialize the state data */
 
   struct lcd_state_s lcd_state;
-  char test_filter[64];
 
   memset(&lcd_state, 0, sizeof(struct lcd_state_s));
   snprintf(lcd_state.devpath, sizeof(lcd_state.devpath), "%s",
@@ -438,9 +437,5 @@ int main(int argc, FAR char *argv[])
                                                lcd_teardown, &lcd_state),
   };
 
-  snprintf(test_filter, sizeof(test_filter), "test_case_lcd_%d",
-                                         lcd_state.test_case_id);
-  cmocka_set_test_filter(test_filter);
-
   return cmocka_run_group_tests(tests, NULL, NULL);
 }