espintcp: remove encap socket caching to avoid reference leak

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-38097 · Microsoft / collected KEV context

cve-program · CVE-2025-38097

• https://git.kernel.org/stable/c/e32bafd08ee35feacd47b05cc5bfe9cd9659cd25
• https://git.kernel.org/stable/c/9673ca00e6c5503069dc98780e2e89db0e663c16
• https://git.kernel.org/stable/c/e4cde54b46a87231c77256a633be1bef62687d69
• https://git.kernel.org/stable/c/b58a295d10065960bcb9d60cb8ca6ead9837cd27
• https://git.kernel.org/stable/c/9cbca30102028f9ad3d2098f935c4368f581fd07
• https://git.kernel.org/stable/c/74fd327767fb784c5875cf7c4ba1217f26020943
• https://git.kernel.org/stable/c/028363685bd0b7a19b4a820f82dd905b1dc83999

No related operational record is retained in the current change model.