stop creating md5 and sha1 checksums
diff --git a/build.xml b/build.xml
index 08f3b47..0a0564b 100644
--- a/build.xml
+++ b/build.xml
@@ -385,8 +385,6 @@
       <fileset dir="${dist.base.binaries}/">
         <include name="**/*"/>
         <exclude name="**/*.asc"/>
-        <exclude name="**/*.md5"/>
-        <exclude name="**/*.sha1"/>
         <exclude name="**/*.sha512"/>
       </fileset>
     </checksums>
@@ -417,8 +415,6 @@
       <fileset dir="${dist.base.source}/">
         <include name="**/*"/>
         <exclude name="**/*.asc"/>
-        <exclude name="**/*.md5"/>
-        <exclude name="**/*.sha1"/>
         <exclude name="**/*.sha512"/>
       </fileset>
     </checksums>
@@ -553,8 +549,6 @@
       <fileset dir="${dist.base.binaries}/">
         <include name="**/*-withdeps*"/>
         <exclude name="**/*.asc"/>
-        <exclude name="**/*.md5"/>
-        <exclude name="**/*.sha1"/>
         <exclude name="**/*.sha512"/>
       </fileset>
     </checksums>
diff --git a/common-tasks.xml b/common-tasks.xml
index 9922f23..1ac063d 100644
--- a/common-tasks.xml
+++ b/common-tasks.xml
@@ -31,12 +31,6 @@
   <macrodef name="checksums">
     <element name="resources" implicit="true"/>
     <sequential>
-      <checksum algorithm="md5">
-        <resources/>
-      </checksum>
-      <checksum algorithm="sha1">
-        <resources/>
-      </checksum>
       <checksum fileext=".sha512" algorithm="sha-512">
         <resources/>
       </checksum>