at location

Summary:
Remove "at location" places in words about buildings/structures like {canga} or {muzga}.

Detailed description:
The "at location" places in those words are unnecessary and cause the more useful places to be pushed to the right. "At location" can be expressed using {bu'u}/{di'o}/{tu'i} or by simply using a predicate {ti ckule gi'e se diklo X} or {gi'e zvati X}. 

Impact:
The negative impact of this change is relatively small. Looking at the corpus, one can see that these places are almost never used. Furthermore, in the case of {ckule} and {cange}, there are usages that incorrectly use the old x2 assuming it is the old x3.
I count the following usage numbers: 
briju3 = 12, 
cange2 = 10 (with at least 1 wrong usage), 
ckule2 = 42 (with several using x2 as the taught subject), 
malsi3 = 2,
ginka3 = 0,
muzga3 = 1,
tumla2 = 4,
xotli2 = 3

This shows an overall extremely small usage percent of these places. In the case of {ckule} and {cange}, it moves the more useful places further back requiring people to perform awkward place skipping. Thus the positive impact would be to facilitate the use of the more often needed places while at the same reducing the overall number of sumti places to learn.