[REACTOS] Cleanup INIT and some PAGE section allocations

- Change INIT_FUNCTION and INIT_SECTION to CODE_SEG("INIT") and DATA_SEG("INIT") respectively
- Remove INIT_FUNCTION from function prototypes
- Remove alloc_text pragma calls as they are not needed anymore

drivers/storage/mountmgr/mntmgr.h

@@ -176,7 +176,6 @@ extern UNICODE_STRING Volume;
 extern KEVENT UnloadEvent;
 extern LONG Unloading;
 
-INIT_FUNCTION
 DRIVER_INITIALIZE DriverEntry;
 
 VOID
@@ -229,7 +228,6 @@ HasDriveLetter(
     IN PDEVICE_INFORMATION DeviceInformation
 );
 
-INIT_FUNCTION
 BOOLEAN
 MountmgrReadNoAutoMount(
     IN PUNICODE_STRING RegistryPath

drivers/storage/mountmgr/mountmgr.c

@@ -899,7 +899,7 @@ MountMgrUnload(IN struct _DRIVER_OBJECT *DriverObject)
 /*
  * @implemented
  */
-INIT_FUNCTION
+CODE_SEG("INIT")
 BOOLEAN
 MountmgrReadNoAutoMount(IN PUNICODE_STRING RegistryPath)
 {
@@ -1793,7 +1793,7 @@ MountMgrShutdown(IN PDEVICE_OBJECT DeviceObject,
 
 /* FUNCTIONS ****************************************************************/
 
-INIT_FUNCTION
+CODE_SEG("INIT")
 NTSTATUS
 NTAPI
 DriverEntry(IN PDRIVER_OBJECT DriverObject,