diff --git a/lib/android-support/android-support-v4.jar b/lib/android-support/android-support-v4.jar
deleted file mode 100644
index aa0b1a5c..00000000
Binary files a/lib/android-support/android-support-v4.jar and /dev/null differ
diff --git a/lib/appcompat/appcompat-v7-24.2.1.aar b/lib/appcompat/appcompat-v7-24.2.1.aar
deleted file mode 100644
index 55121105..00000000
Binary files a/lib/appcompat/appcompat-v7-24.2.1.aar and /dev/null differ
diff --git a/lib/gtest/googletest b/lib/gtest/googletest
deleted file mode 160000
index a2b8a8e0..00000000
--- a/lib/gtest/googletest
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit a2b8a8e07628e5fd60644b6dd99c1b5e7d7f1f47
diff --git a/lib/hamcrest/hamcrest-2.1.jar b/lib/hamcrest/hamcrest-2.1.jar
deleted file mode 100644
index e323d5e8..00000000
Binary files a/lib/hamcrest/hamcrest-2.1.jar and /dev/null differ