Remove some unnecessary #includes.

Amit Langote

src/backend/commands/aggregatecmds.c

@@ -22,7 +22,6 @@
  */
 #include "postgres.h"
 
-#include "access/heapam.h"
 #include "access/htup_details.h"
 #include "catalog/dependency.h"
 #include "catalog/indexing.h"

src/backend/commands/collationcmds.c

@@ -14,7 +14,6 @@
  */
 #include "postgres.h"
 
-#include "access/heapam.h"
 #include "access/htup_details.h"
 #include "access/xact.h"
 #include "catalog/dependency.h"

src/backend/commands/conversioncmds.c

@@ -14,7 +14,6 @@
  */
 #include "postgres.h"
 
-#include "access/heapam.h"
 #include "access/htup_details.h"
 #include "catalog/dependency.h"
 #include "catalog/indexing.h"

src/backend/commands/lockcmds.c

@@ -14,7 +14,6 @@
  */
 #include "postgres.h"
 
-#include "access/heapam.h"
 #include "catalog/namespace.h"
 #include "catalog/pg_inherits_fn.h"
 #include "commands/lockcmds.h"