[vim] update incsearch to is

.gitmodules

@@ -28,9 +28,6 @@
 [submodule ".vim/pack/alpha/start/rust.vim"]
 	path = .vim/pack/alpha/start/rust.vim
 	url = https://github.com/rust-lang/rust.vim.git
-[submodule ".vim/pack/alpha/start/incsearch.vim"]
-	path = .vim/pack/alpha/start/incsearch.vim
-	url = https://github.com/haya14busa/incsearch.vim.git
 [submodule ".vim/pack/alpha/start/vim-vinegar"]
 	path = .vim/pack/alpha/start/vim-vinegar
 	url = https://github.com/tpope/vim-vinegar.git
@@ -106,3 +103,6 @@
 [submodule ".vim/pack/alpha/start/vim-colors-paramount"]
 	path = .vim/pack/alpha/start/vim-colors-paramount
 	url = https://github.com/owickstrom/vim-colors-paramount.git
+[submodule ".vim/pack/alpha/start/is.vim"]
+	path = .vim/pack/alpha/start/is.vim
+	url = git@github.com:haya14busa/is.vim.git

.vim/pack/alpha/start/incsearch.vim

@@ -1 +0,0 @@
-Subproject commit 25e2547fb0566460f5999024f7a0de7b3775201f

.vim/pack/alpha/start/is.vim

@@ -0,0 +1 @@
+Subproject commit 61d5029310c69bde700b2d46a454f80859b5af17

.vimrc

@@ -168,18 +168,6 @@ set smartcase
 
 " Plugins {{{
 
-" incsearch
-let g:incsearch#auto_nohlsearch = 1
-map /  <Plug>(incsearch-forward)
-map ?  <Plug>(incsearch-backward)
-map g/ <Plug>(incsearch-stay)
-map n  <Plug>(incsearch-nohl-n)
-map N  <Plug>(incsearch-nohl-N)
-map *  <Plug>(incsearch-nohl-*)
-map #  <Plug>(incsearch-nohl-#)
-map g* <Plug>(incsearch-nohl-g*)
-map g# <Plug>(incsearch-nohl-g#)
-
 " ripgrep
 if executable('rg')
   set grepprg=rg\ --no-heading\ --vimgrep