CEC-2211 Clean up import (#183)

src/components/Contexts/CANSignalsContext.jsx

@@ -1,5 +1,4 @@
-import React, { useContext, useState } from "react";
-import { useEffect } from "react";
+import React, { useContext, useState, useEffect } from "react";
 
 import api from "../../services/vehiclesAPI";
 import { useUserContext } from "./UserContext";