Removes old VarQTE algorithm code (without primitives).

[dlasecki]

Summary

Removes old VarQTE algorithm code (without primitives).

Details and comments

No deprecation needed as the code has never been released.

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[woodsp-ibm]

This will also need to remove the imports and doc changes that refer to these additions from the algorithms.__init__.py file, I imagine that is most likely causing the issues here

[dlasecki]

This will also need to remove the imports and doc changes that refer to these additions from the algorithms.__init__.py file, I imagine that is most likely causing the issues here

Sure! Thanks for reminding. Was in a bit of a hurry.

[coveralls]

Pull Request Test Coverage Report for Build 3058694165

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 167 unchanged lines in 17 files lost coverage.
• Overall coverage increased (+0.04%) to 84.386%

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Files with Coverage Reduction	New Missed Lines	%
qiskit/algorithms/evolvers/imaginary_evolver.py	1	83.33%
qiskit/pulse/instructions/play.py	1	97.37%
qiskit/pulse/transforms/canonicalization.py	1	92.35%
qiskit/algorithms/optimizers/snobfit.py	2	92.11%
qiskit/namespace.py	2	91.67%
qiskit/opflow/gradients/derivative_base.py	2	91.57%
qiskit/pulse/instructions/snapshot.py	2	93.55%
qiskit/pulse/parameter_manager.py	2	90.42%
qiskit/primitives/sampler.py	4	94.94%
qiskit/pulse/instructions/acquire.py	5	89.36%

Totals
Change from base Build 3053075546:	0.04%
Covered Lines:	59084
Relevant Lines:	70016

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💛 - Coveralls