Remove unndecessary grunt.expand where it might even hang the process

[ali-bugdayci]

• There is already a check for finding the saveCoverageTemplate and if it is not found the grunt task already would fail before coming to this section:

https://github.com/r3b/grunt-protractor-coverage/blob/master/tasks/protractor_coverage.js#L98

    var saveCoverageTemplate = grunt.file.expand([ opts.saveCoverageTemplate, "node_modules/grunt-protractor-coverage/resources/saveCoverage.tmpl", path.join(__dirname, '..') + '/**/resources/saveCoverage.tmpl']).shift();
    if(!saveCoverageTemplate){
      grunt.fail.fatal("Coverage template file not found.");
    }

• Since the first element from the array is used from grunt.file.expand, it is at the very least found in the grunt-protractor-coverage node module, so the last statment is unnecessary

grunt.file.expand([ opts.saveCoverageTemplate, "node_modules/grunt-protractor-coverage/resources/saveCoverage.tmpl", process.cwd()+'/**/resources/saveCoverage.tmpl']).shift();

hence the following is unnecessary

process.cwd()+'/**/resources/saveCoverage.tmpl' 

• The grunt task hangs sometimes because the project it is running under might be big. I debugged and find that it is hanging on the following line:

process.cwd()+'/**/resources/saveCoverage.tmpl'