diff --git a/externals/patches/hadoop-2.7.5.1.patch b/externals/patches/hadoop-2.7.5.1.patch
deleted file mode 100644
index 06806d1185d924b935ad859db213a0a0f2ed9587..0000000000000000000000000000000000000000
--- a/externals/patches/hadoop-2.7.5.1.patch
+++ /dev/null
@@ -1,31 +0,0 @@
---- hadoop-common-project/hadoop-common/src/JNIFlags.cmake.orig 2019-08-20 17:45:24.070529269 +0200
-+++ hadoop-common-project/hadoop-common/src/JNIFlags.cmake 2019-08-20 17:45:46.444138559 +0200
-@@ -91,6 +91,7 @@
- "${_JAVA_HOME}/jre/lib/${_java_libarch}"
- "${_JAVA_HOME}/jre/lib/*"
- "${_JAVA_HOME}/jre/lib"
-+ "${_JAVA_HOME}/lib/${_java_libarch}/*"
- "${_JAVA_HOME}/lib/*"
- "${_JAVA_HOME}/lib"
- "${_JAVA_HOME}/include/*"
-
---- hadoop-common-project/hadoop-annotations/pom.xml.orig 2019-08-21 12:25:21.159115254 +0200
-+++ hadoop-common-project/hadoop-annotations/pom.xml 2019-08-21 12:26:06.259322854 +0200
-@@ -50,7 +50,7 @@
- <artifactId>jdk.tools</artifactId>
- <version>1.7</version>
- <scope>system</scope>
-- <systemPath>${java.home}/../lib/tools.jar</systemPath>
-+ <systemPath>${java.home}/lib/tools.jar</systemPath>
- </dependency>
- </dependencies>
- </profile>
-@@ -65,7 +65,7 @@
- <artifactId>jdk.tools</artifactId>
- <version>1.8</version>
- <scope>system</scope>
-- <systemPath>${java.home}/../lib/tools.jar</systemPath>
-+ <systemPath>${java.home}/lib/tools.jar</systemPath>
- </dependency>
- </dependencies>
- </profile>
diff --git a/externals/patches/hadoop_xrootd-1.0.4.patch b/externals/patches/hadoop_xrootd-1.0.4.patch
deleted file mode 100644
index 18dd40bd89fa2af4fa8e6879f88ec0772ea1cc74..0000000000000000000000000000000000000000
--- a/externals/patches/hadoop_xrootd-1.0.4.patch
+++ /dev/null
@@ -1,51 +0,0 @@
---- pom.xml.orig 2019-06-21 14:48:09.000000000 +0200
-+++ pom.xml 2019-08-22 11:21:40.357333005 +0200
-@@ -33,6 +33,40 @@
- </exclusions>
- </dependency>
- </dependencies>
-+
-+ <profiles>
-+ <profile>
-+ <id>jdk1.7</id>
-+ <activation>
-+ <jdk>1.7</jdk>
-+ </activation>
-+ <dependencies>
-+ <dependency>
-+ <groupId>jdk.tools</groupId>
-+ <artifactId>jdk.tools</artifactId>
-+ <version>1.7</version>
-+ <scope>system</scope>
-+ <systemPath>${java.home}/lib/tools.jar</systemPath>
-+ </dependency>
-+ </dependencies>
-+ </profile>
-+ <profile>
-+ <id>jdk1.8</id>
-+ <activation>
-+ <jdk>1.8</jdk>
-+ </activation>
-+ <dependencies>
-+ <dependency>
-+ <groupId>jdk.tools</groupId>
-+ <artifactId>jdk.tools</artifactId>
-+ <version>1.8</version>
-+ <scope>system</scope>
-+ <systemPath>${java.home}/lib/tools.jar</systemPath>
-+ </dependency>
-+ </dependencies>
-+ </profile>
-+ </profiles>
-+
- <build>
- <plugins>
- <plugin>
-@@ -60,6 +94,7 @@
- <name>XrdUtils</name>
- </sysLib>
- </sysLibs>
-+ <name>g++</name>
- </linker>
- <libraries>
- <library>