set backspace=0 doesn't work in neovim

diff --git a/.gitmodules b/.gitmodules
index 5360d2bd..7368e68f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -165,7 +165,3 @@
 	path = .local/share/nvim/site/pack/alpha/start/dispatch
 	url = https://github.com/tpope/vim-dispatch.git
 	branch = master
-[submodule "hardmode"]
-	path = .local/share/nvim/site/pack/alpha/start/hardmode
-	url = https://github.com/dusans/vim-hardmode.git
-	branch = master
diff --git a/.local/share/nvim/site/pack/alpha/start/hardmode b/.local/share/nvim/site/pack/alpha/start/hardmode
deleted file mode 160000
index 9ec6efc1..00000000
--- a/.local/share/nvim/site/pack/alpha/start/hardmode
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 9ec6efc192033f42d855ba2d09d2b7a7ec50bd66
diff --git a/.local/share/nvim/site/pack/alpha/start/indent-blankline b/.local/share/nvim/site/pack/alpha/start/indent-blankline
index 9ec6efc1..d98f537c 160000
--- a/.local/share/nvim/site/pack/alpha/start/indent-blankline
+++ b/.local/share/nvim/site/pack/alpha/start/indent-blankline
@@ -1 +1 @@
-Subproject commit 9ec6efc192033f42d855ba2d09d2b7a7ec50bd66
+Subproject commit d98f537c3492e87b6dc6c2e3f66ac517528f406f