t5601-clone: remove broken and pointless check for plink.exe
Invoking plink requires special treatment, and we have support and even
test cases for the commands 'plink' and 'tortoiseplink'. We also support
.exe variants for these two and there is a test for 'plink.exe'.
On Windows, however, where support for plink.exe would be relevant, the
test case fails because it is not possible to execute a file with a .exe
extension that is actually not a binary executable---it is a shell
script in our test. We have to disable the test case on Windows.
Considering, that 'plink.exe' is irrelevant on non-Windows, let's just
remove the test and assume that the code "just works".
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>