How do I copy a link from Google search results to clipboard on Android Chrome?
You will need to look for a script or add on that takes care of it.

MakeUseOf has a link for a script to use with desktop firefox and chrome, its possible the script has an Android Chrome variant, or the script is fine for android and that its the engine that you need, to be specific to Android's Chrome browser.

http://www.makeuseof.com/tag/copy-crapfree-urls-googles-search-results/

eg: look for scriptish or greasemonkey on android, also note since the script provided at MakeUseOf is outside the store, you will most likely have to do the manual-add they mention.

Good luck!