Revert "Add Ed25519Keypair.fromDerivePath method (#2900)"

[666lcz]

This reverts commit 32d3047.

#2900 broke the CI and caused all DApps that depends on the SDK to add polyfills. We are temporarily reverting this commit until we find a way to avoid this.

Module not found: Error: Can't resolve 'crypto' in '/home/runner/work/sui/sui/explorer/client/node_modules/@mysten/sui.js/node_modules/bip39-light'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
	- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "crypto": false }
ERROR in ./node_modules/@mysten/sui.js/node_modules/bip39-light/index.js9:16-45
Module not found: Error: Can't resolve 'crypto' in '/home/runner/work/sui/sui/explorer/client/node_modules/@mysten/sui.js/node_modules/bip39-light'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
	- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "crypto": false }
ERROR in ./node_modules/@mysten/sui.js/node_modules/cipher-base/index.js3:16-43
Module not found: Error: Can't resolve 'stream' in '/home/runner/work/sui/sui/explorer/client/node_modules/@mysten/sui.js/node_modules/cipher-base'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
	- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "stream": false }
webpack compiled with 2 errors

[daoauth]

The sui wallet uses bip39-light, but will things get better if I switch to the more stable @scure/bip39?