nios: remove nios-32 arch

The nios-32 arch is obsolete and broken. So it is removed.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
diff --git a/README b/README
index acb3308..68f1720 100644
--- a/README
+++ b/README
@@ -177,9 +177,6 @@
   /mips			Files generic to MIPS architecture
     /cpu		CPU specific files
     /lib		Architecture specific library files
-  /nios			Files generic to Altera NIOS architecture
-    /cpu		CPU specific files
-    /lib		Architecture specific library files
   /nios2		Files generic to Altera NIOS2 architecture
     /cpu		CPU specific files
     /lib		Architecture specific library files
@@ -3337,8 +3334,8 @@
   Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, LynxOS,
   INTEGRITY).
 * Target CPU Architecture (Provisions for Alpha, ARM, AVR32, Intel x86,
-  IA64, MIPS, NIOS, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
-  Currently supported: ARM, AVR32, Intel x86, MIPS, NIOS, PowerPC).
+  IA64, MIPS, Nios II, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
+  Currently supported: ARM, AVR32, Intel x86, MIPS, Nios II, PowerPC).
 * Compression Type (uncompressed, gzip, bzip2)
 * Load Address
 * Entry Point