Revert "add search by filename and file content feature"

This reverts commit a9111488e4.

.gitignore

@@ -1,8 +1,9 @@
 locals.zsh
 log/.zsh_history
 projects.zsh
-custom/example
-custom/example.zsh
+custom/*
+!custom/example
+!custom/example.zsh
 *.swp
 !custom/example.zshcache
 cache/

custom/plugins/sfffe/sfffe.plugin.zsh

@@ -1,28 +0,0 @@
-# ------------------------------------------------------------------------------
-#          FILE:  sfffe.plugin.zsh
-#   DESCRIPTION:  search file for FE
-#        AUTHOR:  yleo77 (ylep77@gmail.com)
-#       VERSION:  0.1
-#       REQUIRE:  ack
-# ------------------------------------------------------------------------------
-
-if [ ! -x $(which ack) ]; then
-    echo  \'ack\' is not installed!
-    exit -1
-fi
-
-ajs() {
-    ack "$@" --type js
-}
-
-acss() {
-    ack "$@" --type css
-}
-
-fjs() {
-    find ./ -name "$@*" -type f | grep '\.js'
-}
-
-fcss() {
-    find ./ -name "$@*" -type f | grep '\.css'
-}