Remove //third_party/brotli and //third_party/ots.

third_party/brotli/dec/safe_malloc.h

-/* Copyright 2013 Google Inc. All Rights Reserved.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
-   Size-checked memory allocation.
-*/
-
-#ifndef BROTLI_DEC_SAFE_MALLOC_H_
-#define BROTLI_DEC_SAFE_MALLOC_H_
-
-#include <assert.h>
-
-#include "./types.h"
-
-#if defined(__cplusplus) || defined(c_plusplus)
-extern "C" {
-#endif
-
-/* This is the maximum memory amount that we will ever try to allocate. */
-#define BROTLI_MAX_ALLOCABLE_MEMORY (1 << 30)
-
-/* size-checking safe malloc/calloc: verify that the requested size is not too
-   large, or return NULL. You don't need to call these for constructs like
-   malloc(sizeof(foo)), but only if there's font-dependent size involved
-   somewhere (like: malloc(decoded_size * sizeof(*something))). That's why this
-   safe malloc() borrows the signature from calloc(), pointing at the dangerous
-   underlying multiply involved.
-*/
-void* BrotliSafeMalloc(uint64_t nmemb, size_t size);
-
-#if defined(__cplusplus) || defined(c_plusplus)
-}    /* extern "C" */
-#endif
-
-#endif  /* BROTLI_DEC_SAFE_MALLOC_H_ */