breaking(vanilla): drop deprecated store.subscribe with selector

[dai-shi]

for v4.

[codesandbox-ci]

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Latest deployment of this branch, based on commit fb4df2e:

Sandbox	Source
React	Configuration
React Typescript	Configuration
React Browserify	Configuration
React Snowpack	Configuration
React Parcel	Configuration
Next.js	Configuration

[github-actions]

Size Change: -1.82 kB (-5%) ✅

Total Size: 34.6 kB

Filename	Size	Change
dist/esm/index.js	1.1 kB	-138 B (-11%)	👏
dist/esm/vanilla.js	353 B	-183 B (-34%)	🎉
dist/index.js	1.21 kB	-139 B (-10%)	👏
dist/system/index.development.js	1.23 kB	-135 B (-10%)	👏
dist/system/index.production.js	783 B	-104 B (-12%)	👏
dist/system/vanilla.development.js	421 B	-188 B (-31%)	🎉
dist/system/vanilla.production.js	263 B	-118 B (-31%)	🎉
dist/umd/index.development.js	1.35 kB	-139 B (-9%)	✅
dist/umd/index.production.js	846 B	-121 B (-13%)	👏
dist/umd/vanilla.development.js	562 B	-213 B (-27%)	🎉
dist/umd/vanilla.production.js	364 B	-133 B (-27%)	🎉
dist/vanilla.js	424 B	-210 B (-33%)	🎉

ℹ️ View Unchanged

Filename	Size
dist/context.js	622 B
dist/esm/context.js	521 B
dist/esm/middleware.js	3.62 kB
dist/esm/shallow.js	272 B
dist/middleware.js	3.71 kB
dist/shallow.js	318 B
dist/system/context.development.js	639 B
dist/system/context.production.js	456 B
dist/system/middleware.development.js	3.73 kB
dist/system/middleware.production.js	2.67 kB
dist/system/shallow.development.js	338 B
dist/system/shallow.production.js	253 B
dist/umd/context.development.js	763 B
dist/umd/context.production.js	559 B
dist/umd/middleware.development.js	3.83 kB
dist/umd/middleware.production.js	2.64 kB
dist/umd/shallow.development.js	447 B
dist/umd/shallow.production.js	344 B

_{compressed-size-action}