[PATCH v2 0/7] remove dead & undocumented shell code

This re-roll should address all the comments on the v1, in particular all of the changes that removed in-tree unused functions that are documented in our manpages were ejected. This series is now only removals of code that should always have been in-tree-only.

The minor change in 4/7 is new, and so is 5/7.

Ævar Arnfjörð Bjarmason (7):
  git-sh-setup: remove unused git_pager() function
  git-sh-setup: remove unused sane_egrep() function
  git-sh-setup: move peel_committish() function to git-subtree.sh
  git-sh-setup: clear_local_git_env() function to git-submodule.sh
  git-sh-setup: remove unused "pull with rebase" message
  git-bisect: remove unused SHA-1 $x40 shell variable
  test-lib: remove unused $_x40 and $_z40 variables

 contrib/subtree/git-subtree.sh | 12 +++++++++
 git-bisect.sh                  |  2 --
 git-sh-setup.sh                | 45 ----------------------------------
 git-submodule.sh               |  7 +-----
 t/t7006-pager.sh               | 13 ----------
 t/test-lib.sh                  |  6 ++---
 6 files changed, 15 insertions(+), 70 deletions(-)

Range-diff against v1:
 1:  2e3ed8061d5 <  -:  ----------- git-sh-setup: remove unused set_reflog_action() function
 2:  7d3ea928099 <  -:  ----------- git-sh-setup: remove unused git_editor() function
 3:  73e540896fc !  1:  8eb1dfbff5d git-sh-setup: remove unused git_pager() function
    @@ Metadata
      ## Commit message ##
         git-sh-setup: remove unused git_pager() function
     
    -    Remove the git_editor() function last referenced by non-test code code
    -    in 49eb8d39c78 (Remove contrib/examples/*, 2018-03-25).
    +    Remove the git_pager() function last referenced by non-test code in
    +    49eb8d39c78 (Remove contrib/examples/*, 2018-03-25).
     
         We can also remove the test for this added in 995bc22d7f8 (pager: move
         pager-specific setup into the build, 2016-08-04), the test that
    @@ Commit message
         Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
     
      ## git-sh-setup.sh ##
    -@@ git-sh-setup.sh: $LONG_USAGE")"
    - 	esac
    - fi
    +@@ git-sh-setup.sh: git_editor() {
    + 	eval "$GIT_EDITOR" '"$@"'
    + }
      
     -git_pager() {
     -	if test -t 1
 4:  73f0676db7a =  2:  e7f3115797c git-sh-setup: remove unused sane_egrep() function
 5:  dc4dd7d1399 <  -:  ----------- git-sh-setup: remove unused require_work_tree_exists() function
 6:  d2d65f3d77f <  -:  ----------- git-sh-setup: move create_virtual_base() to mergetools/p4merge
 7:  a3047b93f7d =  3:  d92e880fcfa git-sh-setup: move peel_committish() function to git-subtree.sh
 -:  ----------- >  4:  46c018aa860 git-sh-setup: clear_local_git_env() function to git-submodule.sh
 -:  ----------- >  5:  45c1369e958 git-sh-setup: remove unused "pull with rebase" message
 8:  88dffac9088 =  6:  bcae7884bb0 git-bisect: remove unused SHA-1 $x40 shell variable
 9:  0fd1516af85 =  7:  479e94f22f4 test-lib: remove unused $_x40 and $_z40 variables