diff --git a/build/extlib/commons-io/commons-io-1.4.jar b/build/extlib/commons-io/commons-io-1.4.jar
deleted file mode 100644
index 133dc6cb35..0000000000
Binary files a/build/extlib/commons-io/commons-io-1.4.jar and /dev/null differ
diff --git a/build/extlib/dropbox-sdk/dropbox-android-sdk-1.5.1.jar b/build/extlib/dropbox-sdk/dropbox-android-sdk-1.5.1.jar
deleted file mode 100644
index 3d9c2fc713..0000000000
Binary files a/build/extlib/dropbox-sdk/dropbox-android-sdk-1.5.1.jar and /dev/null differ
diff --git a/build/extlib/dropbox-sdk/source.txt b/build/extlib/dropbox-sdk/source.txt
deleted file mode 100644
index abd203a970..0000000000
--- a/build/extlib/dropbox-sdk/source.txt
+++ /dev/null
@@ -1 +0,0 @@
-https://www.dropbox.com/static/developers/dropbox-android-sdk-1.5.1.zip