test: remove pointless prereq checks

The prereq check was necessary in upstream git, not here where it's a
noop.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>

test/bidi.t

@@ -10,12 +10,6 @@ test_description='Test bidirectionality of remote-hg'
 
 . ./test-lib.sh
 
-if ! test_have_prereq PYTHON
-then
-	skip_all='skipping remote-hg tests; python not available'
-	test_done
-fi
-
 if ! python -c 'import mercurial' > /dev/null 2>&1
 then
 	skip_all='skipping remote-hg tests; mercurial not available'

test/hg-git.t

@@ -14,12 +14,6 @@ test_description='Test remote-hg output compared to hg-git'
 
 export EXPECTED_DIR="$SHARNESS_TEST_DIRECTORY/expected"
 
-if ! test_have_prereq PYTHON
-then
-	skip_all='skipping remote-hg tests; python not available'
-	test_done
-fi
-
 if ! python -c 'import mercurial' > /dev/null 2>&1
 then
 	skip_all='skipping remote-hg tests; mercurial not available'

test/main.t

@@ -10,12 +10,6 @@ test_description='Test remote-hg'
 
 . ./test-lib.sh
 
-if ! test_have_prereq PYTHON
-then
-	skip_all='skipping remote-hg tests; python not available'
-	test_done
-fi
-
 if ! python -c 'import mercurial' > /dev/null 2>&1
 then
 	skip_all='skipping remote-hg tests; mercurial not available'

test/test-lib.sh

@@ -3,8 +3,6 @@
 : "${SHARNESS_TEST_SRCDIR:=$(cd "$(dirname "${BASH_SOURCE-$0}")" && pwd)}"
 . "$SHARNESS_TEST_SRCDIR"/sharness.sh
 
-test_set_prereq PYTHON
-
 GIT_AUTHOR_EMAIL=author@example.com
 GIT_AUTHOR_NAME='A U Thor'
 GIT_COMMITTER_EMAIL=committer@example.com