Remove references to autoprefixer, seems unneeded

Author: diagnose

Gemfile

@@ -9,7 +9,3 @@ git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 gem "jekyll", "~> 4.2"
 
 gem "webrick", "~> 1.7"
-
-gem "jekyll-autoprefixer", "~> 1.0"
-
-gem "therubyracer", "~> 0.12.3"

Gemfile.lock

@@ -42,29 +42,27 @@ GEM
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
-    libv8 (3.16.14.19)
+    libv8 (8.4.255.0-x86_64-darwin-20)
     liquid (4.0.3)
     listen (3.5.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
+    mini_racer (0.3.1)
+      libv8 (~> 8.4.255)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    ref (2.0.0)
     rexml (3.2.4)
     rouge (3.26.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    therubyracer (0.12.3)
-      libv8 (~> 3.16.14.15)
-      ref
     unicode-display_width (1.7.0)
     webrick (1.7.0)
 
@@ -74,7 +72,7 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 4.2)
   jekyll-autoprefixer (~> 1.0)
-  therubyracer (~> 0.12.3)
+  mini_racer (~> 0.3.1)
   webrick (~> 1.7)
 
 BUNDLED WITH

_config.yml

@@ -1,6 +1,3 @@
 sass:
   sass_dir: _sass
-  style: compressed
-
-gems:
-  - jekyll-autoprefixer
+  style: compressed