Remove support for older nmr annotation format

[stropitek]

We should avoid this kind of stuff:

spectra-data/src/PeakPicking.js

Line 130 in 12eca77

if(options.format==="new"){

Is it really necessary? You shouldn't maintain two formats in the same code. Normally if the format changes you should create a major release of spectra-data and drop the old format.