[Core] Remove function to not override RoundTripPasses.

RoundTripPasses should always be called in DEBUG mode if the environment
variable "LLD_RUN_ROUNDTRIP_TEST" is set.

Flavors should not be able to override this behavior.

llvm-svn: 223073

lld/include/lld/Core/LinkingContext.h

@@ -319,10 +319,6 @@ public:
   virtual uint64_t getNextOrdinalAndIncrement() const { return _nextOrdinal++; }
 
 #ifndef NDEBUG
-  void setRunRoundTripPass(bool roundTripPass) {
-    _runRoundTripPasses = roundTripPass;
-  }
-
   bool runRoundTripPass() const { return _runRoundTripPasses; }
 #endif
 

lld/lib/Core/LinkingContext.cpp

@@ -32,7 +32,7 @@ LinkingContext::LinkingContext()
   llvm::Optional<std::string> env =
       llvm::sys::Process::GetEnv("LLD_RUN_ROUNDTRIP_TEST");
   if (env.hasValue() && !env.getValue().empty())
-    setRunRoundTripPass(true);
+    _runRoundTripPasses = true;
 }
 #else
 LinkingContext::LinkingContext()