Revert "Reinitialise Writefull toolbar after buying AI assist (#25741)" (#26144)

This reverts commit 7247ae45ca7de7f1f3778b1b22f49e2ff840a7ef.

GitOrigin-RevId: c6dc1a073ce3d0f9703e426df1c12fa1c7ffac5c

services/web/frontend/js/shared/context/types/writefull-instance.ts

@@ -42,5 +42,4 @@ export interface WritefullAPI {
   ): void
   openTableGenerator(): void
   openEquationGenerator(): void
-  refreshSession(): void
 }