feat: remove some useless overlays, update flake deps

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "cachix": {
       "locked": {
-        "lastModified": 1612653566,
-        "narHash": "sha256-7qjA9OgOJ97wzEsgElnFnIIrWJ57Wy8p2IuG85fJDZ0=",
+        "lastModified": 1613772719,
+        "narHash": "sha256-jZ6KiCOaDOZJHMDFnBO1fHPrDqDUmOkihPWXavyGa98=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8e78c2cfbae71720869c35b6710d652bf28b37cc",
+        "rev": "38eaa62f28384bc5f6c394e2a99bd6a4913fc71f",
         "type": "github"
       },
       "original": {
@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1613535568,
-        "narHash": "sha256-JeTRN/ee6QTP/IlR89dz1LHMi8ag0kW/Kf8hT6d12sY=",
+        "lastModified": 1614109058,
+        "narHash": "sha256-UMphcAfZ4nsDO6ai0cWZDunO6AvyQj+yvMWevZVnKvg=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2e795f3efd6265e3d538d4ee78bba773e1044340",
+        "rev": "e7b1491fb8dfb1d2bdb90432312e88d03c8d803d",
         "type": "github"
       },
       "original": {
@@ -59,11 +59,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1607689647,
-        "narHash": "sha256-pUpUCcp8usppbByFveRrV2NNS5sFrlvMndZt7xYOQL4=",
+        "lastModified": 1614175572,
+        "narHash": "sha256-SyEZ0ic75KpvUr7VO3oqoMeyhQzgH8em0/oknG6b4y8=",
         "owner": "yusdacra",
         "repo": "nix-exprs",
-        "rev": "e9c16b956180d23c3cb8ec3e2843b2be662d43ef",
+        "rev": "c6c61fe656f6afa69ee4e7fdbc79289e42b857d6",
         "type": "gitlab"
       },
       "original": {
@@ -74,11 +74,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1613612950,
-        "narHash": "sha256-ArDgYtGf4QPHkhNOmfdwKVovoyW6YSUpNVQ22cP+/ko=",
+        "lastModified": 1614124241,
+        "narHash": "sha256-Fk3YFSMGd+94sqqm9thP/28ZTzntuTwDXo+eLfa8Rj4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9bb643272a82ee5696005414b594c22bb02ca489",
+        "rev": "931efba68e1225677059cd99aeb55f0db49baf1c",
         "type": "github"
       },
       "original": {
@@ -99,11 +99,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1613004821,
-        "narHash": "sha256-1CWAVY+Mhcz122LSIEnChszB32QpV5NZ1qxwlAENwvc=",
+        "lastModified": 1613909061,
+        "narHash": "sha256-qHsc88FlRO6PbYM0GQH3xMf9k2D4N+cOIg37m1QcNbs=",
         "owner": "colemickens",
         "repo": "nixpkgs-wayland",
-        "rev": "c2bf18c492c57ca36105c95a1771ed83b207a20d",
+        "rev": "5f8e5f174148d5c758dcdc9fa82c27e87093a14e",
         "type": "github"
       },
       "original": {

overlays/kak-lsp.nix

@@ -1,13 +0,0 @@
-final: prev: {
-  kak-lsp = prev.kak-lsp.overrideAttrs (old: rec {
-    version = "0aaff957839ab24f5b33f9e58ebe0903073573b0";
-    src = prev.fetchFromGitHub rec {
-      owner = "kak-lsp";
-      repo = owner;
-      rev = version;
-      sha256 = "0nka51szivwhlfkimjiyzj67nxh75m784c28ass6ihlfax631w9m";
-    };
-
-    cargoSha256 = "174qy50m9487vv151vm8q6sby79dq3gbqjbz6h4326jwsc9wwi8c";
-  });
-}

overlays/kakoune-unwrapped.nix

@@ -1,11 +0,0 @@
-final: prev: {
-  kakoune-unwrapped = prev.kakoune-unwrapped.overrideAttrs (old: rec {
-    version = "958a9431214dc4bece30aa30a8159e0bb8b5bbe7";
-    src = prev.fetchFromGitHub {
-      owner = "mawww";
-      repo = "kakoune";
-      rev = version;
-      sha256 = "sha256-KSFuM9WQxdUc7lFaDYGB9zZGOHuckto9SEd9cR7evKo=";
-    };
-  });
-}