CrocoGator said:
Alright, I figured it out for Chrome. It's like Firefox, but you have to hold down shift while you press delete. Also, you have to delete one entry at a time; you can't just hold shift + delete. Instead of scrolling to the searches you want to delete with the up/down arrow keys, you can just mouse over it, which may be significantly faster for deleting several searches.

It worked perfectly! thank you!