[install] Remove redundant interactiveness check

Related #3449

/cc @calestyo

1 files changed, 1 insertions, 1 deletions

diff --git a/install b/install
index 5ac191b0..744cc7ab 100755
--- a/install
+++ b/install
@@ -245,7 +245,7 @@ for shell in $shells; do
   src=${prefix_expand}.${shell}
   echo -n "Generate $src ... "
 
-  fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
+  fzf_completion="source \"$fzf_base/shell/completion.${shell}\""
   if [ $auto_completion -eq 0 ]; then
     fzf_completion="# $fzf_completion"
   fi