testing: Fix cmocka_driver_block give more than once

Fix:
```
/home/huang/Work/vela/sifli/apps/Application.mk:273: target 'drivertest_block.c.home.huang.Work.vela.sifli.apps.testing.drivertest.o' given more than once in the same rule
/home/huang/Work/vela/sifli/apps/Application.mk:297: target '/home/huang/Work/vela/sifli/apps/builtin/registry/cmocka_driver_block.bdat' given more than once in the same rule
CC:  romfs_main.c /home/huang/Work/vela/sifli/apps/Application.mk:273: target 'drivertest_block.c.home.huang.Work.vela.sifli.apps.testing.drivertest.o' given more than once in the same rule
/home/huang/Work/vela/sifli/apps/Application.mk:297: target '/home/huang/Work/vela/sifli/apps/builtin/registry/cmocka_driver_block.bdat' given more than once in the same rule
```

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Author: no1wudi

testing/drivertest/Makefile

@@ -88,11 +88,6 @@ PROGNAME += cmocka_driver_i2c_spi
 endif
 endif
 
-ifneq ($(CONFIG_BCH),)
-PROGNAME += cmocka_driver_block
-MAINSRC  += drivertest_block.c
-endif
-
 ifneq ($(CONFIG_DEV_GPIO),)
 PROGNAME += cmocka_driver_gpio
 MAINSRC  += drivertest_gpio.c