**Is your feature request related to a problem? Please describe.** <!--A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]--> There are multiple host dependency based sessions in nox. Refactor the code to use environment variable and reduced the nox sessions. **Describe the solution you'd like** <!--A clear and concise description of what you want to happen.--> Switched to USE_HOST_DEPS based switching of sessions. **Describe alternatives you've considered** <!--A clear and concise description of any alternative solutions or features you've considered.--> Currently, separate sessions are being used. **Additional context** <!--Add any other context or screenshots about the feature request here.-->