Remove .NET Framework remarks (System.Security.<Misc>)

[gewarren]

.NET Framework API ref has moved to its own repo (https://github.com/dotnet/dotnetfw-api-docs), so we can clean up .NET Framework remarks, exceptions, and code examples out of this repo. Contributes to #12513.

Removes remarks and examples related to:

• .NET Framework versions
• Code-access security
• Configuring apps via app.config file
• App domains

Also removes all remarks from obsolete APIs.

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Tagging subscribers to this area: @dotnet/area-system-security, @vcsjones

[Copilot]

Pull request overview

Cleans up .NET Framework-specific remarks, full-trust notes, AppDomain references, and configuration-file guidance from a set of System.Security.* API reference XML files, as part of issue #12513. Most edits replace ".NET Framework" wording with ".NET", drop full-trust caveats from System.Security.RightsManagement types, and simplify multi-implementation tables in System.Security.AccessControl file ACL docs.

Changes:

• Removes full-trust / app.config / AppDomain / WIF-era remarks from RightsManagement, Claims, and Principal types.
• Updates "the .NET Framework provides" phrasing to ".NET provides" across AccessControl rule types.
• Collapses .NET vs .NET Framework method tables in FileSecurity/FileSystemSecurity into single bullet lists and normalizes double-space/ line endings in exception text.

Reviewed changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
xml/System.Security.RightsManagement/UseLicense.xml	Removes full-trust remark; keeps examples.
xml/System.Security.RightsManagement/UnsignedPublishLicense.xml	Removes full-trust remark; normalizes spacing.
xml/System.Security.RightsManagement/SecureEnvironment.xml	Removes full-trust remark.
xml/System.Security.RightsManagement/PublishLicense.xml	Removes full-trust remark; normalizes spacing.
xml/System.Security.RightsManagement/CryptoProvider.xml	Removes full-trust remark.
xml/System.Security.RightsManagement/ContentUser.xml	Removes full-trust remark.
xml/System.Security.RightsManagement/ContentGrant.xml	Replaces full-trust-only remarks with To be added..
xml/System.Security.Principal/WindowsPrincipal.xml	Drops .NET 1.0/1.1 case-sensitivity note; tidies role table.
xml/System.Security.Principal/WindowsIdentity.xml	Changes ".NET Framework" to ".NET" in Token remark.
xml/System.Security.Principal/PrincipalPolicy.xml	Drops AppDomain.SetPrincipalPolicy remark; uses plain <remarks>.
xml/System.Security.Claims/ClaimsPrincipal.xml	Removes WIF/.NET 4.5/full-trust/CAS notes; updates wording to .NET.
xml/System.Security.Claims/ClaimsIdentity.xml	Removes WIF history, full-trust note, and config-file BootstrapContext guidance.
xml/System.Security.Claims/Claim.xml	Removes ".NET Framework 4.5" WIF integration sentence.
xml/System.Security.AccessControl/SemaphoreAuditRule.xml	".NET Framework provides" → ".NET provides".
xml/System.Security.AccessControl/SemaphoreAccessRule.xml	".NET Framework provides" → ".NET provides".
xml/System.Security.AccessControl/RegistryAuditRule.xml	Wording update; trims trailing spaces in exception text.
xml/System.Security.AccessControl/RegistryAccessRule.xml	Wording update; trims trailing spaces in exception text.
xml/System.Security.AccessControl/MutexAuditRule.xml	Wording update.
xml/System.Security.AccessControl/MutexAccessRule.xml	Wording update.
xml/System.Security.AccessControl/FileSystemSecurity.xml	Replaces .NET vs .NET Framework tables with bullet lists; trims exception spacing.
xml/System.Security.AccessControl/FileSecurity.xml	Replaces table with bullet list (first bullet is malformed) and trims exception spacing.
xml/System.Security.AccessControl/EventWaitHandleAuditRule.xml	Wording update.
xml/System.Security.AccessControl/EventWaitHandleAccessRule.xml	Wording update.