tests: remove spurious +x bits

None of these files are (or can be) executed directly, so drop the
spurious +x permission bit.  None of the other tests do this either.

* t/built-sources-install-exec.sh: Remove +x bit.
* t/ccnoco-deps.sh: Likewise.
* t/ccnoco-lib.sh: Likewise.
* t/ccnoco-lt.sh: Likewise.
* t/perf/cond.sh: Likewise.
* t/perf/testsuite-recheck.sh: Likewise.
* t/perf/testsuite-summary.sh: Likewise.
* t/python-prefix.sh: Likewise.
* t/tags-lisp-space.sh: Likewise.
* t/test-extensions-empty.sh: Likewise.

diff --git a/t/built-sources-install-exec.sh b/t/built-sources-install-exec.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/ccnoco-deps.sh b/t/ccnoco-deps.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/ccnoco-lib.sh b/t/ccnoco-lib.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/ccnoco-lt.sh b/t/ccnoco-lt.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/perf/cond.sh b/t/perf/cond.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/perf/testsuite-recheck.sh b/t/perf/testsuite-recheck.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/perf/testsuite-summary.sh b/t/perf/testsuite-summary.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/python-prefix.sh b/t/python-prefix.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/tags-lisp-space.sh b/t/tags-lisp-space.sh
old mode 100755 (executable)
new mode 100644 (file)

diff --git a/t/test-extensions-empty.sh b/t/test-extensions-empty.sh
old mode 100755 (executable)
new mode 100644 (file)