Mutator to remove operand in binary expressions

[Liam-Rougoor]

Is your feature request related to a problem? Please describe.
Currently, we have a BinaryExpressionMutator that swaps operators, for example a + b -> a - b or a && b -> a || b.
For NullCoalescingExpressions, we do not only swap, but also remove either side of the expression.

I think this is something we could also do for other binary expressions.

Describe the solution you'd like
I'd like a mutator that removes either operand in a binary expression. For example, a + b -> a, a + b -> b, a && b -> a, etc.

[dupdob]

I am not sure these mutations would behave differently than the regular binary expression one:
if a+b => a-b is killed, a+b => a is probably killed as well. Expect for string operations, of course.