MIPS: ath79: drop !OF clock code

With the target now being fully OF based, we can drop the legacy clock
registration code. All clocks are now probed via devicetree.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>

arch/mips/ath79/common.h

@@ -19,9 +19,6 @@
 #define ATH79_MEM_SIZE_MIN	(2 * 1024 * 1024)
 #define ATH79_MEM_SIZE_MAX	(256 * 1024 * 1024)
 
-void ath79_clocks_init(void);
-unsigned long ath79_get_sys_clk_rate(const char *id);
-
 void ath79_ddr_ctrl_init(void);
 
 #endif /* __ATH79_COMMON_H */