Remove implementations of logpdf_with_trans for NoDist

[devmotion]

This should be hidden in stdlib/distributions.jl and at most be defined in DynamicPPL (see TuringLang/DynamicPPL.jl#414 (comment)). I wonder, are they used anywhere and what breaks if we remove them completely?

[torfjelde]

Happy to merge if tests pass:)

[devmotion]

Seems to be the case 🙂 I'll bump the version and merge once all tests pass successfully.

[codecov]

Codecov Report

Merging #1849 (a98e047) into master (9f482f3) will increase coverage by 0.13%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1849      +/-   ##
==========================================
+ Coverage   80.89%   81.03%   +0.13%     
==========================================
  Files          24       24              
  Lines        1471     1466       -5     
==========================================
- Hits         1190     1188       -2     
+ Misses        281      278       -3     

Impacted Files	Coverage Δ
src/stdlib/distributions.jl	57.95% <ø> (+0.96%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9f482f3...a98e047. Read the comment docs.

[coveralls]

Pull Request Test Coverage Report for Build 2590200632

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 81.037%

---

Totals
Change from base Build 2581526775:	0.1%
Covered Lines:	1188
Relevant Lines:	1466

---

💛 - Coveralls