remove unused doc

exercises/hamming/HELP.md

-# Help
-
-## Running the tests
-
-Get the first test compiling, linking and passing by following the [three rules of test-driven development][3-tdd-rules].
-
-The included makefile can be used to create and run the tests using the `test` task.
-
-```console
-$ make test
-```
-
-Create just the functions you need to satisfy any compiler errors and get the test to fail.
-Then write just enough code to get the test to pass.
-Once you've done that, move onto the next test.
-
-As you progress through the tests, take the time to refactor your implementation for readability and expressiveness and then go on to the next test.
-
-Try to use standard C99 facilities in preference to writing your own low-level algorithms or facilities by hand.
-
-[3-tdd-rules]: https://blog.cleancoder.com/uncle-bob/2014/12/17/TheCyclesOfTDD.html
-
-## Submitting your solution
-
-You can submit your solution using the `exercism submit hamming.c hamming.h` command.
-This command will upload your solution to the Exercism website and print the solution page's URL.
-
-It's possible to submit an incomplete solution which allows you to:
-
-- See how others have completed the exercise
-- Request help from a mentor
-
-## Need to get help?
-
-If you'd like help solving the exercise, check the following pages:
-
-- The [C track's documentation](https://exercism.org/docs/tracks/c)
-- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
-- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
-
-Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
-
-Make sure you have read the [C track-specific documentation][c-track] on the Exercism site.
-This covers the basic information on setting up the development environment expected by the exercises.
-
-## Submitting Incomplete Solutions
-
-If you are struggling with a particular exercise, it is possible to submit an incomplete solution so you can see how others have completed the exercise.
-
-## Resources
-
-To get help if having trouble, you can use the following resources:
-
-- [StackOverflow][] can be used to search for your problem and see if it has been answered already. You can also ask and answer questions.
-- [CPPReference][] can be used to look up information on C concepts, operators, types, standard library functions and more.
-- [TutorialsPoint][] has similar content as CPPReference in its C programming section.
-- [The C Programming][K&R] book by K&R is the original source of the language and is still useful today.
-
-[c-track]: https://exercism.org/docs/tracks/c
-[stackoverflow]: http://stackoverflow.com/questions/tagged/c
-[cppreference]: https://en.cppreference.com/w/c
-[tutorialspoint]: https://www.tutorialspoint.com/cprogramming/
-[K&R]: https://www.amazon.com/Programming-Language-2nd-Brian-Kernighan/dp/0131103628/
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