apmanger: build on non-Linux hosts

Bug: None
Change-Id: I28500105c27014c7bfd490bfa84faf83bc5580d1
diff --git a/Android.mk b/Android.mk
index 0f212aa..c84dd5f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -44,8 +44,6 @@
       -Wno-missing-field-initializers
 endef
 
-ifeq ($(HOST_OS),linux)
-
 # === libapmanager-client (shared library) ===
 include $(CLEAR_VARS)
 LOCAL_MODULE := libapmanager-client
@@ -122,5 +120,3 @@
 LOCAL_STATIC_LIBRARIES := libapmanager libgmock
 $(eval $(apmanager_common))
 include $(BUILD_NATIVE_TEST)
-
-endif # HOST_OS == linux