Remove all mentions of boost

Summary: proxygen no longer directly requires boost

Reviewed By: jbeshay

Differential Revision: D93943200

fbshipit-source-id: 1371093607df2697771187df2088253609686e8a

Author: afrind

third-party/proxygen/src/cmake/proxygen-config.cmake.in

@@ -32,15 +32,6 @@ find_dependency(Fizz)
 find_dependency(ZLIB)
 find_dependency(OpenSSL)
 find_dependency(Threads)
-find_dependency(Boost 1.69 REQUIRED
-  COMPONENTS
-    iostreams
-    context
-    filesystem
-    program_options
-    regex
-    thread
-)
 find_dependency(c-ares REQUIRED)
 
 if(NOT TARGET proxygen::proxygen)

third-party/proxygen/src/proxygen/lib/http/HTTPHeaders.h

@@ -209,7 +209,7 @@ class HTTPHeaders {
    *     hdrs.removeByPredicate([&] (HTTPHeaderCode code,
    *                                 const string& header,
    *                                 const string& val) {
-   *       return boost::regex_match(header, "^X-Fb-.*");
+   *       return std::regex_match(header, std::regex("^X-Fb-.*"));
    *     });
    *
    * return true only if one or more headers are removed.

third-party/proxygen/src/proxygen/lib/http/HTTPMessage.cpp

@@ -697,7 +697,7 @@ void HTTPMessage::splitNameValuePieces(
 }
 
 StringPiece HTTPMessage::trim(StringPiece sp) {
-  // TODO: use a library function from boost?
+  // TODO: use a library trim function?
   for (; !sp.empty() && sp.front() == ' '; sp.pop_front()) {
   }
   for (; !sp.empty() && sp.back() == ' '; sp.pop_back()) {

third-party/proxygen/src/proxygen/lib/http/session/HTTP2PriorityQueue.h

@@ -215,8 +215,6 @@ class HTTP2PriorityQueue : public HTTP2PriorityQueueBase {
   void updateEnqueuedWeight();
 
  private:
-  using link_mode = boost::intrusive::link_mode<boost::intrusive::auto_unlink>;
-
   class Node
       : public BaseNode
       , public folly::HHWheelTimer::Callback {

third-party/proxygen/src/proxygen/lib/utils/test/GenericFilterTest.cpp

@@ -20,7 +20,7 @@ using std::unique_ptr;
 
 namespace detail {
 
-// This is defined in boost 1.53, but we only have 1.51 so far
+// Helper to get a raw pointer from a unique_ptr
 
 template <typename T>
 T* get_pointer(const unique_ptr<T>& ptr) {