Web native Solido - Remove js-sha3

[molekilla]

Remove js-sha3, no longer required.

[molekilla]

import { sha3_256 } from 'js-sha3';
export class AbiUtils {
    static toHex(input) {
        const s = unescape(encodeURIComponent(input));
        let h = '';
        for (let i = 0; i < s.length; i++) {
            h += s.charCodeAt(i).toString(16);
        }
        return '0x' + h;
    }
    static fromHex(input) {
        const h = input.replace('0x', '');
        let s = '';
        for (let i = 0; i < h.length; i += 2) {
            s += String.fromCharCode(parseInt(h.substr(i, 2), 16));
        }
        return decodeURIComponent(escape(s));
    }
    static encodeFunctionSignature(functionName) {
        return `0x${sha3_256(functionName).slice(0, 10)}`;
    }
    static encodeEventSignature(functionName) {
        return `0x${sha3_256(functionName)}`;
    }
}

[molekilla]

#34