test-eol-*: remove unused config settings

tests/test-eol-clone.t

@@ -1,9 +1,6 b''
 Testing cloning with the EOL extension
 
   $ cat >> $HGRCPATH <<EOF
-  > [diff]
-  > git = True
-  > 
   > [extensions]
   > eol =
   > 

tests/test-eol-hook.t

@@ -1,9 +1,5 b''
 Test the EOL hook
 
-  $ cat >> $HGRCPATH <<EOF
-  > [diff]
-  > git = True
-  > EOF
   $ hg init main
   $ cat > main/.hg/hgrc <<EOF
   > [extensions]

tests/test-eol-tag.t

@@ -3,9 +3,6 b' http://mercurial.selenic.com/bts/issue24'
 Testing tagging with the EOL extension
 
   $ cat >> $HGRCPATH <<EOF
-  > [diff]
-  > git = True
-  > 
   > [extensions]
   > eol =
   >