Remove the llvm/Support/StringPool.h file and related support now that it has no clients. A plain old StringSet<> is a better replacement.

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78336

Author: lattner

llvm/include/llvm/Support/StringPool.h

@@ -138,7 +138,6 @@ add_llvm_component_library(LLVMSupport
   Statistic.cpp
   StringExtras.cpp
   StringMap.cpp
-  StringPool.cpp
   StringSaver.cpp
   StringRef.cpp
   SymbolRemappingReader.cpp

llvm/lib/Support/CMakeLists.txt

@@ -66,7 +66,6 @@ add_llvm_unittest(SupportTests
   ScaledNumberTest.cpp
   SourceMgrTest.cpp
   SpecialCaseListTest.cpp
-  StringPool.cpp
   SwapByteOrderTest.cpp
   SymbolRemappingReaderTest.cpp
   TarWriterTest.cpp