Remove examples

[ghost]

Description

This PR removes examples in this repository since the examples will be maintained in https://github.com/Zilliqa/Zilliqa-JavaScript-Library-Examples.

Motivation and Context

How has this been tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• Add tests to cover changes as needed.
• Update documentation as needed.

[codecov-commenter]

Codecov Report

Merging #344 (53f3af9) into dev (5c2e7cd) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev     #344   +/-   ##
=======================================
  Coverage   80.80%   80.80%           
=======================================
  Files          44       44           
  Lines        1782     1782           
  Branches      295      295           
=======================================
  Hits         1440     1440           
  Misses        341      341           
  Partials        1        1           

Impacted Files	Coverage Δ
packages/zilliqa-js-blockchain/src/chain.ts	62.92% <ø> (ø)

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