Remove undocumented SST special case. This was added in commit
5d40b3d384dc ("mtd: spi-nor: Add parallel and stacked memories support")
without any explanation in the commit message. Remove it.

Fixes: 5d40b3d384dc ("mtd: spi-nor: Add parallel and stacked memories support")
Signed-off-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
---
Cc: Andre Przywara <andre.przyw...@arm.com>
Cc: Ashok Reddy Soma <ashok.reddy.s...@amd.com>
Cc: Jagan Teki <ja...@amarulasolutions.com>
Cc: Michael Walle <mwa...@kernel.org>
Cc: Michal Simek <michal.si...@amd.com>
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: Pratyush Yadav <p.ya...@ti.com>
Cc: Quentin Schulz <quentin.sch...@cherry.de>
Cc: Sean Anderson <sean...@gmail.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Takahiro Kuwano <takahiro.kuw...@infineon.com>
Cc: Tom Rini <tr...@konsulko.com>
Cc: Tudor Ambarus <tudor.amba...@linaro.org>
Cc: Venkatesh Yadav Abbarapu <venkatesh.abbar...@amd.com>
Cc: u-boot@lists.denx.de
Cc: uboot-st...@st-md-mailman.stormreply.com
---
 drivers/mtd/spi/spi-nor-core.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index d22363e8267..3c47751348e 100644
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -3578,19 +3578,6 @@ static int spi_nor_select_erase(struct spi_nor *nor,
                        mtd->erasesize = info->sector_size;
        }
 
-       if ((JEDEC_MFR(info) == SNOR_MFR_SST) && info->flags & SECT_4K) {
-               nor->erase_opcode = SPINOR_OP_BE_4K;
-               /*
-                * In parallel-memories the erase operation is
-                * performed on both the flashes simultaneously
-                * so, double the erasesize.
-                */
-               if (nor->flags & SNOR_F_HAS_PARALLEL)
-                       mtd->erasesize = 4096 * 2;
-               else
-                       mtd->erasesize = 4096;
-       }
-
        return 0;
 }
 
-- 
2.45.2

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