Cygwin: fix a few comments mentioning Windows 7 or 8

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

winsup/cygwin/fhandler/pipe.cc

@@ -1179,9 +1179,6 @@ cache_err:
   return get_query_hdl_per_process (name, ntfn); /* Since Win8 */
 }
 
-/* This function is faster than get_query_hdl_per_system(), however,
-   only works since Windows 8 because ProcessHandleInformation is not
-   suppoted by NtQueryInformationProcess() before Windows 8. */
 HANDLE
 fhandler_pipe::get_query_hdl_per_process (WCHAR *name,
 					  OBJECT_NAME_INFORMATION *ntfn)

winsup/cygwin/fhandler/proc.cc

@@ -650,7 +650,6 @@ format_proc_cpuinfo (void *, char *&destbuf)
   char *buf = tp.c_get ();
   char *bufptr = buf;
 
-  //WORD num_cpu_groups = 1;	/* Pre Windows 7, only one group... */
   WORD num_cpu_per_group = __get_cpus_per_group ();
 
   cpu_num_p = wcpcpy (cpu_key, L"\\Registry\\Machine\\HARDWARE\\DESCRIPTION"

winsup/cygwin/local_includes/ntdll.h

@@ -961,8 +961,7 @@ typedef struct _LDR_DATA_TABLE_ENTRY
   ULONG Flags;
   USHORT LoadCount;
   /* More follows.  Left out since it's just not used.  The aforementioned
-     part of the structure is stable from at least NT4 up to Windows 8,
-     including WOW64. */
+     part of the structure is stable from at least NT4 up to Windows 11. */
 } LDR_DATA_TABLE_ENTRY, *PLDR_DATA_TABLE_ENTRY;
 
 typedef struct _PEB_LDR_DATA

winsup/cygwin/mount.cc

@@ -294,13 +294,13 @@ fs_info::update (PUNICODE_STRING upath, HANDLE in_vol)
   if (is_remote_drive ())
     {
 /* Should be reevaluated for each new OS.  Right now this mask is valid up
-   to Windows 8.  The important point here is to test only flags indicating
+   to Windows 11.  The important point here is to test only flags indicating
    capabilities and to ignore flags indicating a specific state of this
    volume.  At present these flags to ignore are FILE_VOLUME_IS_COMPRESSED,
    FILE_READ_ONLY_VOLUME, and FILE_SEQUENTIAL_WRITE_ONCE.  The additional
    filesystem flags supported since Windows 7 are also ignored for now.
-   They add information, but only on W7 and later, and only for filesystems
-   also supporting these flags, right now only NTFS. */
+   They add information only for filesystems also supporting these flags,
+   right now only NTFS. */
 #define GETVOLINFO_VALID_MASK (0x002701ffUL)
 #define TEST_GVI(f,m) (((f) & GETVOLINFO_VALID_MASK) == (m))
 

winsup/cygwin/resource.cc

@@ -218,8 +218,7 @@ __set_rlimit_as (unsigned long new_as_limit)
 
   /* If we already have a limit, we must not change it because that
      would potentially influence already running child processes.
-     Just try to create another, nested job.  On systems prior to
-     Windows 8 / Server 2012 this will fail, but that's ok. */
+     Just try to create another, nested job. */
   while (new_as_id == 0)
     new_as_id = InterlockedIncrement (&job_serial_number);
   RtlInitUnicodeString (&uname,