Tags
bibliography, BibTeX, citation, LaTeX, Mendeley, publishing, TeX, Tricks
Install notepad++, and open the bibfile.
search -> find -> replace
under search mode choose “Regular expression”
find and replace with the following search string:
^(url|annote|file|abstract|doi|issn|month).*$\r?\n
Where url|annote|file|abstract|doi|issn|month denotes what entries is deleted.

Removing Abstract field from BibTeX
NOTE: Replace with field should be empty (no space).
Then just hit Replace All button.
You are welcome 😀
Original idea: Søren Roesgaard Nielsen