[fusl] Remove code for unsupported architectures

fusl/arch/mips/bits/user.h

Index: fusl/arch/mips/bits/user.h
diff --git a/fusl/arch/mips/bits/user.h b/fusl/arch/mips/bits/user.h
deleted file mode 100644
index ab2805ba19375b061e22cdaadc2ef26a4112556e..0000000000000000000000000000000000000000
--- a/fusl/arch/mips/bits/user.h
+++ /dev/null
@@ -1,13 +0,0 @@
-struct user {
-  unsigned long regs[45 + 64];
-  unsigned long u_tsize, u_dsize, u_ssize;
-  unsigned long start_code, start_data, start_stack;
-  long signal;
-  void* u_ar0;
-  unsigned long magic;
-  char u_comm[32];
-};
-#define ELF_NGREG 45
-#define ELF_NFPREG 33
-typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
-typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];