chore: removes the usage of the merkletree package

[staheri14]

Overview

Inline with #125.
For more context, please see the following comment.

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

[codecov]

Codecov Report

Merging #126 (f9f65fa) into master (e8ad2aa) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #126   +/-   ##
=======================================
  Coverage   96.33%   96.33%           
=======================================
  Files           6        6           
  Lines         464      464           
=======================================
  Hits          447      447           
  Misses         11       11           
  Partials        6        6           

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[rootulp]

Awesome, this LGTM after we remove the first line from

nmt/README.md

Lines 98 to 99 in e8ad2aa

	This implementation (currently) uses NebulousLabs' [merkletree][NebulousLabs'] implementation
	and was heavily inspired by the initial implementation in the celestiaorg [prototype].

[liamsi]

👏🏼 Nice!
Agree on this: #126 (review)

readme needs to be updated 1st

[staheri14]

Awesome, this LGTM after we remove the first line from

nmt/README.md

Lines 98 to 99 in e8ad2aa

	This implementation (currently) uses NebulousLabs' [merkletree][NebulousLabs'] implementation
	and was heavily inspired by the initial implementation in the celestiaorg [prototype].

Sure, good point, please see the revised version in f9f65fa.