If you feel uncomfortable using the 2-step verification, then you can choose to turn it off. Here are simple steps to know How To Turn Off 2-Step Verification in Google Accounts following as:
Login to your Google account and then visit the Security settings https://www.google.com/settings/security/
Then, Click "Forwarding and POP/IMAP" tab
Click on the link Turn off 2-step verification in top/middle side.
You would be shown a confirmation dialog, click on turn off button.
From now on, you will be able to sign on to your Google account by just using your password without requiring any verification code from your mobile phone.