Removing unused dimensions of an array for the channel crosstalk

The channel crosstalk parameters of a member variable have been modified to remove an unused dimension for phi (N=48). This crosstalk should be the same between the same chambers. Actually, the code has the exactly-same parameters for this. We just have inefficient 48 arrays and 48 loops to copy it.

The side (positive/negative chamber eta) should be also same thing, but this might be change the output, so it will be not changed in this MR.