scripted-diff: Replace CCriticalSection with RecursiveMutex

-BEGIN VERIFY SCRIPT-
 # Delete outdated alias for RecursiveMutex
 sed -i -e '/CCriticalSection/d'                 ./src/sync.h
 # Replace use of outdated alias with RecursiveMutex
 sed -i -e 's/CCriticalSection/RecursiveMutex/g' $(git grep -l CCriticalSection)
-END VERIFY SCRIPT-

src/net_processing.h

@@ -11,7 +11,7 @@
 #include <consensus/params.h>
 #include <sync.h>
 
-extern CCriticalSection cs_main;
+extern RecursiveMutex cs_main;
 
 /** Default for -maxorphantx, maximum number of orphan transactions kept in memory */
 static const unsigned int DEFAULT_MAX_ORPHAN_TRANSACTIONS = 100;