Do not move points on clamp initialization

[FranzBangar]

Clamps will guess initial parameters on initialization and then move points;
when adding clamps to optimizer, junctions (that are still at old positions) will not be found.

Remove this line:

classy_blocks/src/classy_blocks/optimize/clamps/clamp.py

Line 28 in c70979e

self.update_params(self.params)