docs: Replace 'since' -> 'removed in' in removed-features.rst

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Alex Bennée <[email protected]>
Reviewed-by: Michael Tokarev <[email protected]>
Signed-off-by: Michael Tokarev <[email protected]>

Author: philmd

docs/about/removed-features.rst

@@ -403,13 +403,13 @@ Sound card devices should be created using ``-device`` or ``-audio``.
 The exception is ``pcspk`` which can be activated using ``-machine
 pcspk-audiodev=<name>``.
 
-``-watchdog`` (since 7.2)
-'''''''''''''''''''''''''
+``-watchdog`` (removed in 7.2)
+''''''''''''''''''''''''''''''
 
 Use ``-device`` instead.
 
-Hexadecimal sizes with scaling multipliers (since 8.0)
-''''''''''''''''''''''''''''''''''''''''''''''''''''''
+Hexadecimal sizes with scaling multipliers (removed in 8.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 Input parameters that take a size value should only use a size suffix
 (such as 'k' or 'M') when the base is written in decimal, and not when
@@ -510,15 +510,15 @@ than zero.
 
 Removed along with the ``compression`` migration capability.
 
-``-device virtio-blk,scsi=on|off`` (since 9.1)
-''''''''''''''''''''''''''''''''''''''''''''''
+``-device virtio-blk,scsi=on|off`` (removed in 9.1)
+'''''''''''''''''''''''''''''''''''''''''''''''''''
 
 The virtio-blk SCSI passthrough feature is a legacy VIRTIO feature.  VIRTIO 1.0
 and later do not support it because the virtio-scsi device was introduced for
 full SCSI support.  Use virtio-scsi instead when SCSI passthrough is required.
 
-``-fsdev proxy`` and ``-virtfs proxy`` (since 9.2)
-''''''''''''''''''''''''''''''''''''''''''''''''''
+``-fsdev proxy`` and ``-virtfs proxy`` (removed in 9.2)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 The 9p ``proxy`` filesystem backend driver was originally developed to
 enhance security by dispatching low level filesystem operations from 9p
@@ -532,8 +532,8 @@ security model option, or switch to ``virtiofs``.   The virtiofs daemon
 ``virtiofsd`` uses vhost to eliminate the high latency costs of the 9p
 ``proxy`` backend.
 
-``-portrait`` and ``-rotate`` (since 9.2)
-'''''''''''''''''''''''''''''''''''''''''
+``-portrait`` and ``-rotate`` (removed in 9.2)
+''''''''''''''''''''''''''''''''''''''''''''''
 
 The ``-portrait`` and ``-rotate`` options were documented as only
 working with the PXA LCD device, and all the machine types using