fix targeting models empty tests

[ssnn]

test_TargetingModels.R:227: skip: makeDegenerate5merMut with extended=FALSE using an example
Empty test

test_TargetingModels.R:240: skip: makeDegenerate5merMut with extended=TRUE using an example
Empty test

[ssnn]

@Julian Zhou check these two tests and see if you can fix them, or if not needed anymore, remove them

[ssnn]

test_TargetingModels.R:227: skip: makeDegenerate5merMut with extended=FALSE using an example
Empty test

test_TargetingModels.R:240: skip: makeDegenerate5merMut with extended=TRUE using an example
Empty test

[Julian Zhou]

Good catch @ssnn ! Had no idea that those two tests were just plainly wrong all this time!

Fixed in commit 481f8cb.

[ssnn]

Removing milestone: next release (automated comment)