Make Qmake copy package files instead of OS scripts

Described in commit 97e203fd89e7cb54c7ce96ce779b2e8cb6ac1374

The python functions are no longer needed since the python script
doesn't handle file copy any more.

build_scripts/win/build.py

@@ -117,11 +117,6 @@ def deploy():
 
     say("windeployqt added to file.")
 
-    say("Copying necessary files:")
-
-    #openvr dll
-    copy_file(get_project_dir() + "\\third-party\\openvr\\bin\\win64\\openvr_api.dll", get_deploy_dir() + "\\openvr_api.dll")
-
     say("Creating batch file:")
     create_batch_file()
     say("Batch file created.")

build_scripts/win/common.py

@@ -5,8 +5,6 @@ import os
 import sys
 import argparse
 import subprocess
-import shutil
-import distutils.dir_util
 import string
 
 def get_version_string():
@@ -210,39 +208,4 @@ def get_original_dir():
 
 def get_deploy_dir():
     return DEPLOY_DIR
-
-def copy_file(src, dest):
-    """Copies a file and outputs status to console."""
-    say(f"Copying {src} to {dest}")
-    shutil.copy(src, dest)
-    say(f"{src} to {dest} copied.")
-
-def copy_folder(src, dest):
-    """Copies a folder and outputs status to console."""
-    say(f"Copying {src} to {dest}")
-    distutils.dir_util.copy_tree(src, dest)
-    say(f"{src} to {dest} copied.")
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