You did not mention the duration of the job which you want removed from your resume. I would say if it was a short period (below 6 months) you might as well remove it from your resume, if the duration is long (above a year) then there could be a problem in taking it off your resume.
It is not a must you should be honest on your resume you can lie but make sure its a calculated lie....afterall the companies we apply for also lie (ENRON) so dont think twice before putting a little lie on your resume.. I bet everybody lies on their resumes (a little bit).