(svn r18045) -Fix: GCC 4.5@HEAD not compiling OpenTTD anymore because of a "non-placement deallocation function [is] selected for placement delete", or in other words delete(void *, size_t) is 'magic'.

We implemented these delete(void *, size_t) operator functions because MSVC warned that "no matching operator delete found; memory will not be freed if initialization throws an exception" for new(size_t, size_t).
This disables MSVC warning about this because we do not use exceptions in the (constructors that use the) overridden allocation functions, as such they will never be called; delete(void *) remains necessary though.

src/core/pool_type.hpp

@@ -118,20 +118,6 @@ struct Pool {
 			return Tpool->GetNew(size, index);
 		}
 
-		/**
-		 * Deletes item with given index.
-		 * @param p Titem memory to release
-		 * @param index index of item
-		 * @note never use this! Only for internal use
-		 *       (called automatically when constructor of Titem uses throw())
-		 */
-		FORCEINLINE void operator delete(void *p, size_t index)
-		{
-			assert(p == Tpool->Get(index));
-			Tpool->FreeItem(index);
-		}
-
-
 		/**
 		 * Allocates space for new Titem at given memory address
 		 * @param size size of Titem
@@ -154,21 +140,6 @@ struct Pool {
 			return ptr;
 		}
 
-		/**
-		 * Deletes item that was allocated by the function above
-		 * @param p Titem memory to release
-		 * @param ptr parameter given to operator new
-		 * @note never use this! Only for internal use
-		 *       (called automatically when constructor of Titem uses throw())
-		 */
-		FORCEINLINE void operator delete(void *p, void *ptr)
-		{
-			assert(p == ptr);
-			for (size_t i = 0; i < Tpool->first_unused; i++) {
-				assert(ptr != Tpool->data[i]);
-			}
-		}
-
 
 		/** Helper functions so we can use PoolItem::Function() instead of _poolitem_pool.Function() */