Remove test buffers idea

Close #7

src/jschardet.js

@@ -1,30 +1,12 @@
-let jschardet = (() => {
+module.exports = (() => {
   try {
     let m = require('jschardet')
     if (m == null) throw new Error()
 
     return m
   } catch (err) {
     return {
-      detect: () => ({encoding: 'UTF-8'}),
-      detectBuffers() {
-        return this.detect()
-      }
+      detect: () => ({encoding: 'UTF-8'})
     }
   }
 })()
-
-module.exports = {
-  detectBuffers(buffers) {
-    let u = new jschardet.UniversalDetector()
-    u.reset()
-
-    for (let buf of buffers) {
-      u.feed(buf.toString('binary'))
-    }
-
-    u.close()
-    return u.result
-  },
-  ...jschardet
-}

src/tokenize.js

@@ -53,7 +53,6 @@ exports.tokenizeBufferIter = function*(buffer, {encoding = null} = {}) {
   // Search for encoding
 
   let prelude = []
-  let testBuffers = []
 
   while (true) {
     let next = tokens.next()
@@ -72,22 +71,9 @@ exports.tokenizeBufferIter = function*(buffer, {encoding = null} = {}) {
     ) {
       encoding = unescapeString(value.slice(1, -1))
       break
-    } else if (
-      type === 'c_value_type' &&
-      lastToken != null &&
-      lastToken.type === 'prop_ident' &&
-      encodingDetectionProps.includes(lastToken.value)
-    ) {
-      testBuffers.push(iconv.encode(value.slice(1, -1), detectedEncoding))
-
-      if (testBuffers.reduce((sum, buf) => sum + buf.length, 0) > 100) break
     }
   }
 
-  if (encoding == null && testBuffers.length > 0) {
-    encoding = jschardet.detectBuffers(testBuffers).encoding
-  }
-
   if (
     encoding != null &&
     encoding != detectedEncoding &&