Turn off dumping mermaid graphs in FSharpWorkspace (dotnet#18717)

This was added to debug FSharpWorkspace tests on the LSP branch, should
only run in debug mode if at all and we don't need it at the moment

Co-authored-by: Adam Boniecki <abonie@users.noreply.github.com>

Author: abonie

tests/FSharp.Compiler.ComponentTests/CompilerService/FSharpWorkspace.fs

@@ -43,7 +43,10 @@ type TestingWorkspace(testName) as _this =
 
     let activity = Activity.start $"Test FSharpWorkspace {testName}" []
 
-    do _this.Projects.Debug_DumpGraphOnEveryChange <- Some debugGraphPath
+    // Keeping graph dumping infrastructure for now
+    // To turn it on change `None` to `Some debugGraphPath`
+    // But if we want to turn it on again, it needs to only work in debug and not release
+    do _this.Projects.Debug_DumpGraphOnEveryChange <- None
 
     member _.DebugGraphPath = debugGraphPath