code: function removeUnnecessaryElse(path) {
      const { node } = path;
      const consequent = path.get("consequent");
      const alternate = path.get("alternate");
  
      if (
        consequent.node &&
        alternate.node &&
        (consequent.isReturnStatement() ||
          (consequent.isBlockStatement() &&
            t.isReturnStatement(
              consequent.node.body[consequent.node.body.length - 1]
            ))) &&
        // don't hoist declarations
        // TODO: validate declarations after fixing scope issues
        (alternate.isBlockStatement()
          ? !alternate
              .get("body")
              .some(
                stmt =>
                  stmt.isVariableDeclaration({ kind: "let" }) ||
                  stmt.isVariableDeclaration({ kind: "const" })
              )
          : true)
      ) {
        path.insertAfter(
          alternate.isBlockStatement()
            ? alternate.node.body.map(el => t.clone(el))
            : t.clone(alternate.node)
        );
        node.alternate = null;
        return REPLACED;
      }
    }
docs: Remove else for if-return