Durban – The efforts of the police, who traced four suspected armed robbers within hours of the alleged crime, were in vain because the charges were dropped.Free State police spokesperson Warrant Officer Mmako Mophiring said the Harrismith police leapt into action after two friends from Mthatha, Eastern Cape, who were on their way to Durban, in KwaZulu-Natal, were allegedly robbed in town.“They were robbed of three cellphones, a car key and cash. The cellphones and car key were recovered,” Mophiring said.He said on Sunday, June 30, at about 3.50am, the two friends had decided to park…