Revert "chore(deps): update dependencies and config files"

This reverts commit a50b9a3.

Author: lzwjava

Gemfile

@@ -37,5 +37,3 @@ gem 'bigdecimal'
 gem "jekyll-include-cache"
 
 gem 'jekyll-theme-cayman'
-
-gem 'kramdown-math-katex'

Gemfile.lock

@@ -12,7 +12,6 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
-    execjs (2.10.0)
     ffi (1.17.1-aarch64-linux-gnu)
     ffi (1.17.1-aarch64-linux-musl)
     ffi (1.17.1-arm-linux-gnu)
@@ -78,13 +77,8 @@ GEM
     jekyll-watch (2.2.1)
       listen (~> 3.0)
     json (2.10.1)
-    katex (0.10.0)
-      execjs (~> 2.8)
     kramdown (2.5.1)
       rexml (>= 3.3.9)
-    kramdown-math-katex (1.0.1)
-      katex (~> 0.4)
-      kramdown (~> 2.0)
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.4)
@@ -175,7 +169,6 @@ DEPENDENCIES
   jekyll-sitemap
   jekyll-theme-cayman
   jekyll-toc
-  kramdown-math-katex
   logger
   minima
   rubyzip

_config.yml

@@ -42,7 +42,6 @@ exclude:
 markdown: kramdown
 
 kramdown:
-  math_engine: katex
   input: GFM
   syntax_highlighter: rouge
 

_layouts/default.html

@@ -46,24 +46,8 @@
         });
       </script>
 
-      <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.css" crossorigin="anonymous">
-      <script defer src="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.js" crossorigin="anonymous"></script>
-      <script defer src="https://cdn.jsdelivr.net/npm/[email protected]/dist/contrib/auto-render.min.js" crossorigin="anonymous"></script>
-      
-      <script>
-        document.addEventListener("DOMContentLoaded", function() {
-          renderMathInElement(document.body, {
-            delimiters: [
-              {left: "$$", right: "$$", display: true},
-              {left: "\\(", right: "\\)", display: false},
-              {left: "\[", right: "\]", display: true}
-            ]
-          });
-        });
-      </script>
-
-  <!-- <script type="text/javascript" async
-    src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML"></script> -->
+  <script type="text/javascript" async
+    src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML"></script>
 
   <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>