Hertha Berlin’s dream of reaching the German Cup final in their Olympic Stadium home venue for the first time ended extactly there in a 3-1 quarter-final exit against second tier rivals Kaiserslautern on Wednesday. Jan Elvedi’s in the sixth minute, Richmond Tachie in the 38th, and Filip Kaloc in the 69th were on target for the clinical visitors, with the third ending Hertha’s comeback efforts earlier in the second half. Fabian Reese got a stoppage time consolation goal while not to blame for the defeat was goalkeeper Marius Gersbeck who played for the first time since being fined by an Austria…