Revert "Mark the poplar build as broken."

This reverts commit 72c8cc0248497ce12fde025dc43b78032139b033.

These warnings no longer appear after I3113aac59d30c724e31c2f1f35dc94d1bcc087da

Test: lunch poplar-userdebug; m nothing
Change-Id: I35ea2c9b09a62ef957525f70e5bcd6c7044a68c3
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 9a285a7..77edb26 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -1,5 +1,5 @@
 
-BUILD_BROKEN_DUP_RULES := true
+
 
 BOARD_FLASH_BLOCK_SIZE := 512