docs: remove 2024 gsod proposal

[HCloward]

What/Why/How?

Our 2024 Google season of docs proposal was not accepted so I am taking it down to avoid confusion from our users.

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: 9450686

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions]

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	982.8 ± 13.5	956.0	1003.3	1.00 ± 0.02
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	982.4 ± 10.1	968.4	998.6	1.00

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	76.84%	4415/5746
🟡	Branches	67.06%	2396/3573
🟡	Functions	70.58%	734/1040
🟡	Lines	77%	4145/5383

Test suite run success

721 tests passing in 101 suites.

Report generated by 🧪jest coverage report action from 9450686

[lornajane]

Thanks!