variables of the desired type

This reverts commit 88657fd0.

Move DefinitionLocation declaration, add new parameters to GetConflictEditSpan and GetReferenceEditSpan

See #43627

* Remove Razor IVTs

* Remove obsolete DocumentInfo.Create

* Remove RazorDocumentInfoFactory as it is not needed anymore

* AssetStorage cleanup

* Test fixes

* Remove unused code

* Conditional using

Manually fix and/or suppress IDE0052 (Remove unread private members) - Note that this diagnostic ID has no associated code fix and needs manual fixes.

1. Revert changes due to false positives from #33009. The suppression can be removed once we move to a newer CodeStyle package with the fix for this issue.
2. FixAll in solution did not apply fix to a linked file shared with Microsoft.CodeAnalysis, so apply it manually. This looks like a likely editorconfig bug when executing within csc/vbc as the squiggle does not show up in IDE, which seems to be the correct behavior as this file is outside the cone for which IDE0044 is enforced as a warning, i.e. `[src/{Analyzers,CodeStyle,Features,Workspaces}/**/*.{cs,vb}]`. I will investigate and file a bug.