Revert "modify for python2"

This reverts commit 66a298d.
I didn't notice that Alex already did that in PR #15

Author: kevinzwang

Robot2018/src/tests/scriptupload/scriptupload.py

@@ -5,7 +5,7 @@
 
 go = False #true when file has been successfully read
 file = [] #an array of strings which represent each line of the file
-filename = raw_input("File name: ") #the name of the file to read (user input)
+filename = input("File name: ") #the name of the file to read (user input)
 
 #loops until a file is read into the file array
 while not go: