Revert "[Huawei] RISC-V: Add Microchip PolarFire kconfig option"

hulk inclusion
category: bugfix
bugzilla: 49892
CVE: NA

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This reverts commit 536f67936ebf0b2fdea99f04b31ceaec09cc6a8f.
Reviewed-by: NMingwang Li <limingwang@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/riscv/Kconfig.socs

@@ -22,13 +22,6 @@ config SOC_VIRT
 	help
 	  This enables support for QEMU Virt Machine.
 
-config SOC_MICROCHIP_POLARFIRE
-	bool "Microchip PolarFire SoCs"
-	select MCHP_CLK_PFSOC
-	select SIFIVE_PLIC
-	help
-	  This enables support for Microchip PolarFire SoC platforms.
-
 config SOC_KENDRYTE
 	bool "Kendryte K210 SoC"
 	depends on !MMU