The assault charge Isaiah Stewart had been facing for allegedly socking Drew Eubanks in the face was dismissed on Thursday ... after prosecutors said the Phoenix Suns player didn't want to move forward with the case against the Detroit Pistons center.
According to court documents, obtained by TMZ Sports, officials filed a motion in Arizona to dismiss the case this week ... explaining Eubanks "no longer desires prosecution in this matter."
A judge signed off on the motion a short time later -- putting Stewart in the clear.