Revert "Revert "Revert "Cleanup transitive includes in the legacy inlines."""

This reverts commit f945fb6b8a09d08be89b1b771b20d7291baab659.

Reason for revert: haven't fixed all the builds yet

Change-Id: I55aff5d0290c27691427d91a8e46ae01c87da6b2
diff --git a/libc/include/android/legacy_fenv_inlines_arm.h b/libc/include/android/legacy_fenv_inlines_arm.h
index f5b2828..58c49c2 100644
--- a/libc/include/android/legacy_fenv_inlines_arm.h
+++ b/libc/include/android/legacy_fenv_inlines_arm.h
@@ -29,12 +29,10 @@
 #ifndef ANDROID_LEGACY_FENV_INLINES_ARM_H
 #define ANDROID_LEGACY_FENV_INLINES_ARM_H
 
-#include <sys/cdefs.h>
+#include <fenv.h>
 
 #if __ANDROID_API__ < __ANDROID_API_L__ && defined(__arm__)
 
-#include <fenv.h>
-
 __BEGIN_DECLS
 
 #define FPSCR_ENABLE_SHIFT 8