Revert "arm: turn on -Wl,--fatal-warnings"

This reverts commit edfee7250f072cb148da6de04eacb834366bef38.
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 4aa8576..854037d 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -138,7 +138,6 @@
 			-Wl,-z,relro \
 			-Wl,-z,now \
 			-Wl,--warn-shared-textrel \
-			-Wl,--fatal-warnings \
 			-Wl,--icf=safe \
 			$(arch_variant_ldflags)