Virtual Environment File to not

Thanks for the updated files to make OpenVINO work on Ubuntu 18.04. When I run the squeezenet demo script, I now get the following error.

INTEL_CVSDK_DIR environment variable is not set. Trying to run ./setvars.sh to set it. 
[setupvars.sh] OpenVINO environment initialized
Found existing environment. Skipping installing dependencies for Model Optimizer.
If you want to install again, remove venv directory. Then run the script again

./demo_squeezenet_download_convert_run.sh: line 152: /opt/intel//computer_vision_sdk_2018.3.343/deployment_tools/model_optimizer/install_prerequisites/../venv/bin/activate: No such file or directory
Error on or near line 152; exiting with status 1
demo@demo-server-03:/opt/intel/computer_vision_sdk/deployment_tools/demo$ sudo -E ./demo_squeezenet_download_convert_run.sh```

[tedchina]

Hi, @uhofemei your OpenVINO release version is different/newer than the one @nikhilraghava was using.

Yes, this is the latest public release of the OpenVINO Toolkit. I think, I will refrain from using Ubuntu 18.04 until it's officially supported. Thanks.

[e-luo]

I commented out line 152 and it worked... it passed the test.