Remove references to TDB2::read_only

A TC replica is always read-write.

src/Context.cpp

@@ -851,8 +851,7 @@ int Context::dispatch (std::string &out)
     assert (c);
 
     // The command know whether they need a GC.
-    if (c->needs_gc () &&
-        ! tdb2.read_only ())
+    if (c->needs_gc ())
     {
       run_gc = config.getBoolean ("gc");
       tdb2.gc ();
@@ -862,13 +861,6 @@ int Context::dispatch (std::string &out)
       run_gc = false;
     }
 
-/*
-    // Only read-only commands can be run when TDB2 is read-only.
-    // TODO Implement TDB2::read_only
-    if (tdb2.read_only () && !c->read_only ())
-      throw std::string ("");
-*/
-
     // This is something that is only needed for write commands with no other
     // filter processing.
     if (c->accepts_modifications () &&

src/TDB2.cpp

@@ -1261,16 +1261,6 @@ bool TDB2::verifyUniqueUUID (const std::string& uuid)
   return pending.id (uuid) != 0 ? false : true;
 }
 
-////////////////////////////////////////////////////////////////////////////////
-bool TDB2::read_only ()
-{
-  return pending._read_only   ||
-         completed._read_only ||
-         undo._read_only      ||
-         backlog._read_only
-         ;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 int TDB2::num_local_changes ()
 {

src/TDB2.h

@@ -134,9 +134,6 @@ public:
   std::string uuid (int);
   int id (const std::string&);
 
-  // Read-only mode.
-  bool read_only ();
-
   int num_local_changes ();
   int num_reverts_possible ();