hw/sd/sdcard: Remove leftover comment about removed 'spi' Property

Commit c3287c0f70 ("hw/sd: Introduce a "sd-card" SPI variant
model") removed the 'spi' property. Remove the comment left
over.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Message-Id: <20240703085907.66775-2-philmd@linaro.org>

hw/sd/sd.c

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index b158402..53767be 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -2473,10 +2473,6 @@
     DEFINE_PROP_UINT8("spec_version", SDState,
                       spec_version, SD_PHY_SPECv2_00_VERS),
     DEFINE_PROP_DRIVE("drive", SDState, blk),
-    /* We do not model the chip select pin, so allow the board to select
-     * whether card should be in SSI or MMC/SD mode.  It is also up to the
-     * board to ensure that ssi transfers only occur when the chip select
-     * is asserted.  */
     DEFINE_PROP_END_OF_LIST()
 };