You do not need to put Makefile if there is nothing to compile.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

KernelVersion: v6.2-rc1

 arch/arm/Makefile          | 1 -
 arch/arm/mach-rda/Makefile | 2 --
 2 files changed, 3 deletions(-)
 delete mode 100644 arch/arm/mach-rda/Makefile

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 4067f5169144..233496bfbe19 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -213,7 +213,6 @@ machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2
 machine-$(CONFIG_ARCH_ORION5X)		+= orion5x
 machine-$(CONFIG_ARCH_PXA)		+= pxa
 machine-$(CONFIG_ARCH_QCOM)		+= qcom
-machine-$(CONFIG_ARCH_RDA)		+= rda
 machine-$(CONFIG_ARCH_REALTEK)		+= realtek
 machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
 machine-$(CONFIG_ARCH_RPC)		+= rpc
diff --git a/arch/arm/mach-rda/Makefile b/arch/arm/mach-rda/Makefile
deleted file mode 100644
index f126d00ecd53..000000000000
--- a/arch/arm/mach-rda/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj- += dummy.o
-- 
2.34.1