dmaengine: st_fdma: drop unused module alias

The driver has never supported anything but OF probe so drop the
unused platform module alias.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251120164907.28007-1-johan@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: jhovold

drivers/dma/st_fdma.c

@@ -866,4 +866,3 @@ MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("STMicroelectronics FDMA engine driver");
 MODULE_AUTHOR("Ludovic.barre <Ludovic.barre@st.com>");
 MODULE_AUTHOR("Peter Griffin <peter.griffin@linaro.org>");
-MODULE_ALIAS("platform:" DRIVER_NAME);