refactor: remove buffer shim option from filer webpack plugin

src/webpack-plugin/plugin.js

@@ -39,9 +39,6 @@ module.exports = class FilerWebpackPlugin {
             case 'path':
               if (!this.options.shimPath) return;
               return this.applyPathShim(resolveData);
-            case 'buffer':
-              if (!this.options.shimBuffer) return;
-              return this.applyBufferShim(resolveData);
             default:
               return;
             }
@@ -81,8 +78,4 @@ module.exports = class FilerWebpackPlugin {
   applyPathShim(resolveData) {
     resolveData.request = path.join(this.options.shimsDir, 'path.js');
   }
-
-  applyBufferShim(resolveData) {
-    resolveData.request = path.join(this.options.shimsDir, 'buffer.js');
-  }
 };

src/webpack-plugin/processors.js

@@ -22,7 +22,6 @@ module.exports = {
   },
   shimFs: { default: true },
   shimPath: { default: true},
-  shimBuffer: { default: true},
   fsProvider: { default: 'default'},
   fsProviderDir: {
     process: function(value) {

src/webpack-plugin/schema.js

@@ -13,9 +13,6 @@ module.exports = {
     shimPath: {
       type: 'boolean',
     },
-    shimBuffer: {
-      type: 'boolean',
-    },
     fsProvider: {
       type: 'string',
     },