refactor(core): shave bytes

[dai-shi]

just one byte?

[vercel]

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Name	Status	Preview	Updated
valtio	✅ Ready (Inspect)	Visit Preview	Sep 2, 2022 at 3:34AM (UTC)

[codesandbox-ci]

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Latest deployment of this branch, based on commit baaba2b:

Sandbox	Source
React	Configuration
React Typescript	Configuration
React Browserify	Configuration
React Snowpack	Configuration
React Parcel	Configuration

[github-actions]

Size Change: -10 B (0%)

Total Size: 48.3 kB

Filename	Size	Change
dist/esm/vanilla.js	1.9 kB	-2 B (0%)
dist/system/vanilla.development.js	2 kB	-1 B (0%)
dist/system/vanilla.production.js	1.25 kB	-2 B (0%)
dist/umd/vanilla.development.js	2.1 kB	-2 B (0%)
dist/umd/vanilla.production.js	1.32 kB	-1 B (0%)
dist/vanilla.js	2.01 kB	-2 B (0%)

ℹ️ View Unchanged

Filename	Size
dist/esm/index.js	712 B
dist/esm/macro.js	613 B
dist/esm/macro/vite.js	697 B
dist/esm/utils.js	3.94 kB
dist/index.js	880 B
dist/macro.js	910 B
dist/macro/vite.js	982 B
dist/system/index.development.js	871 B
dist/system/index.production.js	508 B
dist/system/macro.development.js	721 B
dist/system/macro.production.js	555 B
dist/system/macro/vite.development.js	828 B
dist/system/macro/vite.production.js	653 B
dist/system/utils.development.js	4.15 kB
dist/system/utils.production.js	2.83 kB
dist/umd/index.development.js	1 kB
dist/umd/index.production.js	670 B
dist/umd/macro.development.js	1.06 kB
dist/umd/macro.production.js	766 B
dist/umd/macro/vite.development.js	1.15 kB
dist/umd/macro/vite.production.js	874 B
dist/umd/utils.development.js	4.73 kB
dist/umd/utils.production.js	3.02 kB
dist/utils.js	4.58 kB

_{compressed-size-action}

[dai-shi]

two bytes!