fix: Remove parametric calibration workaround

[jcjaskula-aws]

Issue #, if available:
When we started vending calibrations, we introduced a workaround to avoid providing parametric calibrations with quantum circuits. For example, the following circuit:

OPENQASM 3.0;
defcal rx(theta) $0 {
 ...
}
rx(0.2) $0;

would be modified to

OPENQASM 3.0;
defcal rx(0.2) $0 {
 ...
}
rx(0.2) $0;

Description of changes:
The present PR intends to keep track of this workaround and provide the right behavior.

Testing done:
Unit tests added. As the workaround has been implemented due to a limitation of the service, we should probably add integ tests as well.

Merge Checklist

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (661529a) to head (9ea4a07).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #915   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files          132       132           
  Lines         8823      8803   -20     
  Branches      1986      1978    -8     
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- Hits          8823      8803   -20     

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