Remove dead includes in folly/logging

Reviewed By: yfeldblum

Differential Revision: D19768449

fbshipit-source-id: b5a259486403601cf60d4e7066640e1ed4601410

folly/logging/AsyncLogWriter.cpp

@@ -22,9 +22,6 @@
 #include <folly/logging/LoggerDB.h>
 #include <folly/system/ThreadName.h>
 
-using folly::File;
-using folly::StringPiece;
-
 namespace folly {
 
 constexpr size_t AsyncLogWriter::kDefaultMaxBufferSize;

folly/logging/ImmediateFileWriter.cpp

@@ -21,8 +21,6 @@
 #include <folly/logging/LoggerDB.h>
 #include <folly/portability/Unistd.h>
 
-using folly::StringPiece;
-
 namespace folly {
 
 ImmediateFileWriter::ImmediateFileWriter(StringPiece path)

folly/logging/LogConfigParser.cpp

@@ -23,7 +23,6 @@
 #include <folly/lang/SafeAssert.h>
 #include <folly/logging/LogName.h>
 
-using std::shared_ptr;
 using std::string;
 
 namespace folly {

folly/logging/Logger.cpp

@@ -22,8 +22,6 @@
 #include <folly/logging/LogMessage.h>
 #include <folly/logging/LoggerDB.h>
 
-using std::string;
-
 namespace folly {
 
 Logger::Logger(StringPiece name) : Logger{LoggerDB::get().getCategory(name)} {}

folly/logging/test/AsyncLogWriterTest.cpp

@@ -23,8 +23,6 @@
 #include <iostream>
 
 using namespace folly;
-using namespace std::literals::chrono_literals;
-using testing::ContainsRegex;
 
 namespace {
 static bool* expectedMessage;

folly/logging/test/ConfigUpdateTest.cpp

@@ -28,7 +28,6 @@
 #include <folly/test/TestUtils.h>
 
 using namespace folly;
-using ::testing::Pair;
 using ::testing::UnorderedElementsAre;
 
 namespace {

folly/logging/test/helpers/FatalHelper.cpp

@@ -67,8 +67,6 @@ DEFINE_bool(
     false,
     "Test an XCHECK_EQ() statement with pointer arguments");
 
-using folly::LogLevel;
-
 namespace {
 /**
  * Helper class to optionally log a fatal message during static initialization

folly/logging/xlog.cpp

@@ -22,8 +22,6 @@
 #include <folly/Synchronized.h>
 #include <folly/portability/PThread.h>
 
-using folly::StringPiece;
-
 namespace folly {
 
 namespace detail {