Remove reference to external/safe-iop from Android.bp.

Bug: http://b/25224572
Test: ran tests
Change-Id: I7e77b7003f90802ffecc8f22dcaca389fd41da47
diff --git a/libdex/Android.bp b/libdex/Android.bp
index 63600c6..b98d25d 100644
--- a/libdex/Android.bp
+++ b/libdex/Android.bp
@@ -38,7 +38,6 @@
     include_dirs: [
         "dalvik",
         "external/zlib",
-        "external/safe-iop/include",
     ],
     static_libs: ["liblog"],
     whole_static_libs: ["libziparchive"],