[fusl] Remove code for unsupported architectures

fusl/arch/powerpc/bits/stat.h

Index: fusl/arch/powerpc/bits/stat.h
diff --git a/fusl/arch/powerpc/bits/stat.h b/fusl/arch/powerpc/bits/stat.h
deleted file mode 100644
index 01abe4f4f1fba525b4e9115e28a78f50a83522d6..0000000000000000000000000000000000000000
--- a/fusl/arch/powerpc/bits/stat.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* copied from kernel definition, but with padding replaced
- * by the corresponding correctly-sized userspace types. */
-
-struct stat {
-  dev_t st_dev;
-  ino_t st_ino;
-  mode_t st_mode;
-  nlink_t st_nlink;
-  uid_t st_uid;
-  gid_t st_gid;
-  dev_t st_rdev;
-  short __st_rdev_padding;
-  off_t st_size;
-  blksize_t st_blksize;
-  blkcnt_t st_blocks;
-  struct timespec st_atim;
-  struct timespec st_mtim;
-  struct timespec st_ctim;
-  unsigned __unused[2];
-};