diff --git a/build/extlib/custom_rules.xml b/build/extlib/custom_rules.xml
deleted file mode 100644
index b9fee67e1f..0000000000
--- a/build/extlib/custom_rules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project name="imported">
- <target name="-post-compile">
-  <macrodef name="dex-helper">
-   <element name="external-libs" optional="yes"/>
-   <attribute name="nolocals" default="false"/>
-   <sequential>
-    <property name="out.dex.input.absolute.dir" value="${out.classes.absolute.dir}"/>
-    <path id="out.dex.jar.input.ref" path="${basedir}/libs/jcifs-1.3.17.jar"/>
-    <dex executable="${dx}" output="${intermediate.dex.file}" nolocals="@{nolocals}" verbose="${verbose}">
-     <path path="${out.dex.input.absolute.dir}"/>
-     <path refid="out.dex.jar.input.ref"/>
-     <external-libs/>
-    </dex>
-   </sequential>
-  </macrodef>
- </target>
-</project>
diff --git a/build/extlib/ganymed-ssh/ganymed-ssh2-build210.jar b/build/extlib/ganymed-ssh/ganymed-ssh2-build210.jar
deleted file mode 100755
index e3bde26c74..0000000000
Binary files a/build/extlib/ganymed-ssh/ganymed-ssh2-build210.jar and /dev/null differ
diff --git a/build/extlib/ganymed-ssh/source.txt b/build/extlib/ganymed-ssh/source.txt
deleted file mode 100644
index 86d3b8a03f..0000000000
--- a/build/extlib/ganymed-ssh/source.txt
+++ /dev/null
@@ -1 +0,0 @@
-http://mvnrepository.com/artifact/ch.ethz.ganymed/ganymed-ssh2/
diff --git a/build/extlib/jcifs/jcifs-1.3.17.jar b/build/extlib/jcifs/jcifs-1.3.17.jar
deleted file mode 100644
index ae4c8d86b6..0000000000
Binary files a/build/extlib/jcifs/jcifs-1.3.17.jar and /dev/null differ
diff --git a/build/extlib/jcifs/source.txt b/build/extlib/jcifs/source.txt
deleted file mode 100644
index b5a3202b5d..0000000000
--- a/build/extlib/jcifs/source.txt
+++ /dev/null
@@ -1 +0,0 @@
-http://jcifs.samba.org/src/jcifs-1.3.17.jar