Get Cosmopolitan into releasable state

A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html

libc/integral/c.inc

@@ -804,16 +804,6 @@ typedef uint64_t uintmax_t;
   do {            \
   } while (0)
 
-/**
- * Makes one-line for-statements possible w/o formatter/linter drama.
- * @note Python uses this keyword
- */
-#define /* TODO(jart): delete */ pass FUIX MOE BROKEN a int a c int
-
-#ifndef assume
-#define /* TODO(jart): delete */ assume(x) __builtin_assume(x)
-#endif
-
 #ifndef likely
 #define likely(expr) __builtin_expect(!!(expr), 1)
 #endif