Revert "Move licence file to correct place to be used for windows installer." licence file no longer needed

This reverts commit 722f4bb9af.

Change-Id: Ib341a8b510526bd6547542db049bd0c5062eff70
Reviewed-on: http://gerrit.dmdirc.com/1833
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

build-installer.xml

         <copy file="dist/DMDirc.jar"
             tofile="modules\installer\windows\files\DMDirc.jar"
             overwrite="true" />
-        <copy file="src/com/dmdirc/licences/DMDirc - MIT"
-            tofile="modules\installer\windows\licence.txt"
-            overwrite="true" />
         <nsis script="modules\installer\windows\updater.nsi" verbosity="1">
             <define name="VERSION" value="${version.git.nsis}"/>
         </nsis>
             <define name="VERSION" value="${version.git.nsis}"/>
         </nsis>
         <delete dir="modules\installer\windows\files" />
-        <delete file="modules\installer\windows\licence.txt" />
     </target>
 
 </project>

installer/windows/makeInstallerNSIS.sh

 mkdir -p ../../modules/installer/windows/files
 
 cp "${jarfile}" "../../modules/installer/windows/files/DMDirc.jar"
-cp "../../src/com/dmdirc/licences/DMDirc - MIT" "../../modules/installer/windows/licence.txt"
 cd ../../modules/installer/windows/files
 
 if [ "" != "${plugins}" ]; then
 	makensis -DVERSION="${NSISVERSION}" -V2 $NSI;
 done
 
-rm "license.txt"
-
 cd "${OLDDIR}"
 SRC="../../modules/installer/output/DMDirc-Setup.exe"