Revert "[Memory leak]uniq_ptr for tmsg (#985)"

This reverts commit 7f6c9ebaf7.

tools/nui/FileReader.cpp

@@ -1,6 +1,5 @@
 #include "FileReader.hpp"
 #include "FrameReader.hpp"
-#include <memory>
 
 #include <QtNetwork>
 
@@ -84,7 +83,8 @@ void LogReader::mergeEvents(int dled) {
       capnp::FlatArrayMessageReader cmsg = capnp::FlatArrayMessageReader(amsg);
 
       // this needed? it is
-      std::unique_ptr<capnp::FlatArrayMessageReader> tmsg(new capnp::FlatArrayMessageReader(kj::arrayPtr(amsg.begin(), cmsg.getEnd())));
+      capnp::FlatArrayMessageReader *tmsg =
+        new capnp::FlatArrayMessageReader(kj::arrayPtr(amsg.begin(), cmsg.getEnd()));
 
       amsg = kj::arrayPtr(cmsg.getEnd(), amsg.end());