tests: remove lines that enable progress extension

progress has not been an extension for a long time,
it has been integrated into core, thus these lines
have not done anything for a while.

tests/test-archive.t

@@ -269,8 +269,6 b' enable progress extension:'
 
   $ cp $HGRCPATH $HGRCPATH.no-progress
   $ cat >> $HGRCPATH <<EOF
-  > [extensions]
-  > progress =
   > [progress]
   > assume-tty = 1
   > format = topic bar number

tests/test-convert-svn-move.t

@@ -152,8 +152,6 b' Try updating'
 Test convert progress bar
 
   $ cat >> $HGRCPATH <<EOF
-  > [extensions]
-  > progress =
   > [progress]
   > assume-tty = 1
   > delay = 0

tests/test-subrepo-recursion.t

@@ -255,8 +255,6 b' Enable progress extension for archive te'
 
   $ cp $HGRCPATH $HGRCPATH.no-progress
   $ cat >> $HGRCPATH <<EOF
-  > [extensions]
-  > progress =
   > [progress]
   > disable=False
   > assume-tty = 1