Fixed issue with fields splitting causing layout issues

For J3.2 I (under JUX team) implemented an automatic split of parameters over 2 columns when there are more than 10.
This will divide the params over 2 span6 divs.

However, this change sucks as it causes issues with some 3rd party devs and also makes it unclear when the split occurs between certain parameters that should stick together.

So this PR removes that split functionality that I put in.

PS: I have been discussing other methods to solve the issue this tried to solve, and would be in the form of sub-fieldsets which would get automatically grouped in - for instance - divs with a class 'well'.