fix: remove unnecessary `load` hook

[younggglcy]

Description

IMHO, the load hook of the plugin is not necessary at all.

Let's take a glance at the logic of hijackHood(plugin, 'load').

1. first we execute hooks to get the result
2. check whether it's valid
3. if it's valid, then put in into the map, which refers transformMap or transformMapSSR.

So we add the correct result into the map in step 3. However, the load hook of vite-plugin-inspect is executed first in step 1, and there is no corresponding result in the map at this time, because the correct result is obtained by calling the load hooks of other plugins.

I added some console.logs to the hook and tested it in /playground, the result could prove too.

    load: {
      order: 'pre',
      handler(id, { ssr } = {}) {
        const map = ssr ? transformMapSSR : transformMap
        console.log(id in map)
        delete map[id]
        return null
      },
    },

Linked Issues

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Additional context

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