remove unneeded imports from remix-solidity

remix-solidity/index.js

@@ -1,16 +1,8 @@
-var InternalCallTree = require('./src/decoder/internalCallTree')
-var SolidityProxy = require('./src/decoder/solidityProxy')
-var localDecoder = require('./src/decoder/localDecoder')
-var stateDecoder = require('./src/decoder/stateDecoder')
 var CodeAnalysis = require('./src/analysis/staticAnalysisRunner')
 var Compiler = require('./src/compiler/compiler')
 var CompilerInput = require('./src/compiler/compiler-input')
 
 module.exports = {
-  InternalCallTree: InternalCallTree,
-  SolidityProxy: SolidityProxy,
-  localDecoder: localDecoder,
-  stateDecoder: stateDecoder,
   CodeAnalysis: CodeAnalysis,
   Compiler: Compiler,
   CompilerInput: CompilerInput