Remove a bunch of stuff that shouldn't be in docs

libc/calls/dup-nt.c

@@ -28,9 +28,7 @@
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/errfuns.h"
 
-/**
- * Implements dup(), dup2(), dup3(), and F_DUPFD for Windows.
- */
+// Implements dup(), dup2(), dup3(), and F_DUPFD for Windows.
 textwindows int sys_dup_nt(int oldfd, int newfd, int flags, int start) {
   int64_t rc, proc, handle;
   _unassert(oldfd >= 0);

libc/calls/fstat-sysv.c

@@ -24,7 +24,7 @@
 #include "libc/sysv/errfuns.h"
 
 /**
- * Supports fstat(), etc. implementations.
+ * Forms fstat() on System Five.
  * @asyncsignalsafe
  */
 int32_t sys_fstat(int32_t fd, struct stat *st) {

libc/calls/fstatat-sysv.c

@@ -23,7 +23,7 @@
 #include "libc/sysv/errfuns.h"
 
 /**
- * Supports stat(), lstat(), fstatat(), etc. implementations.
+ * Performs fstatat() on System Five.
  * @asyncsignalsafe
  */
 int32_t sys_fstatat(int32_t dirfd, const char *path, struct stat *st,

libc/calls/poll-nt.c

@@ -42,7 +42,7 @@
 #include "libc/sysv/consts/sig.h"
 #include "libc/sysv/errfuns.h"
 
-/**
+/*
  * Polls on the New Technology.
  *
  * This function is used to implement poll() and select(). You may poll

libc/calls/sync-nt.c

@@ -28,9 +28,7 @@
 #include "libc/nt/runtime.h"
 #include "libc/sysv/consts/ok.h"
 
-/**
- * Flushes all open file handles and, if possible, all disk drives.
- */
+// Flushes all open file handles and, if possible, all disk drives.
 textwindows int sys_sync_nt(void) {
   unsigned i;
   int64_t volume;