include cleanups (powered by iwyu)

src/lib/upnp/ContentDirectoryService.cxx

@@ -21,11 +21,12 @@
 #include "UniqueIxml.hxx"
 #include "Device.hxx"
 #include "ixmlwrap.hxx"
-#include "Action.hxx"
 #include "util/UriUtil.hxx"
 #include "util/RuntimeError.hxx"
 #include "util/SplitString.hxx"
 
+#include <upnptools.h>
+
 ContentDirectoryService::ContentDirectoryService(const UPnPDevice &device,
 						 const UPnPService &service) noexcept
 	:m_actionURL(uri_apply_base(service.controlURL, device.URLBase)),

src/lib/upnp/Discovery.hxx

@@ -28,7 +28,6 @@
 #include "lib/curl/Request.hxx"
 #include "thread/Mutex.hxx"
 #include "event/DeferEvent.hxx"
-#include "util/Compiler.h"
 
 #include <upnp.h>
 
@@ -37,7 +36,6 @@
 #include <list>
 #include <vector>
 #include <string>
-#include <memory>
 #include <chrono>
 
 #if UPNP_VERSION < 10800

src/lib/upnp/Util.cxx

@@ -19,8 +19,6 @@
 
 #include "Util.hxx"
 
-#include <assert.h>
-
 /** Get rid of white space at both ends */
 void
 trimstring(std::string &s, const char *ws) noexcept

src/lib/upnp/ixmlwrap.hxx

@@ -19,8 +19,6 @@
 
 #include <ixml.h>
 
-#include <string>
-
 namespace ixmlwrap {
 	/**
 	 * Retrieve the text content for the first element of given