tests: Remove unnecessary status fish-path

This is broken on OpenBSD because it apparently doesn't have a /proc
we can query, so it just gives "fish".

Since it's unnecessary in this context just skip it.

tests/checks/job-control-noninteractive.fish

@@ -15,7 +15,6 @@ or echo "pgroups were the same, job control did not work"
 
 # fish ignores SIGTTIN and so may transfer the tty even if it
 # doesn't own the tty. Ensure that doesn't happen.
-set -l fish (status fish-path)
 $fish -c 'status job-control full ; $fth report_foreground' &
 wait
 #CHECKERR: background

tests/checks/sigint.fish

@@ -1,7 +1,6 @@
 #RUN: %fish -C "set -g helper %fish_test_helper; set -g fish %fish" %s
 
 # Check that nohup is propagated.
-set fish (status fish-path)
 set output_path (mktemp)
 nohup $fish -c "$helper print_ignored_signals" 2>&1 > $output_path
 cat $output_path