[PATCH 2/4] subtree: remove support for git version <1.7

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Now that git-subtree is in-tree there's no reason to be supporting
older git Versions. This reverts & amends 448e71e263 ("Use 'git merge
-Xsubtree' when git version >= 1.7.0.", 2010-05-07).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 git-subtree.sh | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/git-subtree.sh b/git-subtree.sh
index d3f39a862a..1b8cd53c7f 100755
--- a/git-subtree.sh
+++ b/git-subtree.sh
@@ -810,23 +810,12 @@ cmd_merge () {
 		rev="$new"
 	fi
 
-	version=$(git version)
-	if test "$version" \< "git version 1.7"
+	if test -n "$message"
 	then
-		if test -n "$message"
-		then
-			git merge -s subtree --message="$message" "$rev"
-		else
-			git merge -s subtree "$rev"
-		fi
+		git merge -Xsubtree="$prefix" \
+			--message="$message" "$rev"
 	else
-		if test -n "$message"
-		then
-			git merge -Xsubtree="$prefix" \
-				--message="$message" "$rev"
-		else
-			git merge -Xsubtree="$prefix" $rev
-		fi
+		git merge -Xsubtree="$prefix" $rev
 	fi
 }
 
-- 
2.17.0.290.gded63e768a