By Andrew Gould Baker Mayfield is keeping busy while waiting for a trade. According to Pro Football Network’s Aaron Wilson, the Cleveland Browns quarterback worked out with free-agent wide receivers Cole Beasley and Danny Amendola in Austin, Texas, where all three players currently reside. The Buffalo Bills released Beasley last week after not finding a trade partner to accommodate his request. He reeled in 82 receptions in each of the last two seasons. Cutting Beasley freed up $6.1 million in cap space, some of which Buffalo used to sign former New York Jets wideout Jamison Crowder to a one-y…