FP5: Re-enable broken dup rules check

All failures of this have been resolved

Change-Id: I56a923ac90b98e63c093c8cb65cb1059dde57c49
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 37a1270..908b4a4 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -3,8 +3,6 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-BUILD_BROKEN_DUP_RULES := true
-
 DEVICE_PATH := device/fairphone/FP5
 
 # A/B