nios2: remove EPCS driver

The Altera EPCS is SPI flash. We have been using SPI flash driver to access EPCS for years. The old EPCS driver could be removed.

---
 arch/nios2/cpu/Makefile |    2 +-
 arch/nios2/cpu/epcs.c   |  717 -----------------------------------------------
 include/nios2-epcs.h    |   60 ----
 3 files changed, 1 insertions(+), 778 deletions(-)
 delete mode 100644 arch/nios2/cpu/epcs.c
 delete mode 100644 include/nios2-epcs.h

index bdd983d..3fe7847 100644
@@ -7,5 +7,5 @@
 
 extra-y	= start.o
 obj-y	= exceptions.o
-obj-y	+= cpu.o interrupts.o sysid.o traps.o epcs.o
+obj-y	+= cpu.o interrupts.o sysid.o traps.o
 obj-y	+= fdt.o

1.7.1

Applied.

Thomas Chou