Revert "adbd: lessen security constraints when the device is unlocked"

This reverts commit f1d3dbc32f18d9b3604da03bc043c1b4cc3f5a35.

With the following changes to move /sbin/adbd to /system/bin/adbd,
we don't need this workaround anymore.

  https://android-review.googlesource.com/#/q/topic:move-adbd-to-system+(status:open+OR+status:merged)

Bug: 63313955
Bug: 63381692
Bug: 64822208
Test: 'adb root' works in VTS for a non-A/B device (userdebug GSI + user boot.img)

Change-Id: Ic1249d6abd7d6e6e7380a661df16d25447853a48
diff --git a/adb/Android.mk b/adb/Android.mk
index e195bec..b63cce0 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -345,11 +345,11 @@
     -D_GNU_SOURCE \
     -Wno-deprecated-declarations \
 
-LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
 LOCAL_CFLAGS += -DALLOW_ADBD_NO_AUTH=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
 
 ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 LOCAL_CFLAGS += -DALLOW_ADBD_DISABLE_VERITY=1
+LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=1
 endif
 
 LOCAL_MODULE := adbd