[emacs] remove slack and most of its deps

[~bandali/configs] / lib / request

diff --git a/lib/request b/lib/request
deleted file mode 160000 (submodule)
index db88fd2..0000000
--- a/lib/request
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit db88fd21d25399ff9940c208173665b12493992b