[ubsan][NFC] Remove recently added cl::init(false)

Extracted from #84858

Author: vitalybuka

clang/lib/CodeGen/BackendUtil.cpp

@@ -101,20 +101,19 @@ namespace llvm {
 extern cl::opt<bool> PrintPipelinePasses;
 
 cl::opt<bool> ClRemoveTraps("clang-remove-traps", cl::Optional,
-                            cl::desc("Insert remove-traps pass."),
-                            cl::init(false));
+                            cl::desc("Insert remove-traps pass."));
 
 // Experiment to move sanitizers earlier.
 static cl::opt<bool> ClSanitizeOnOptimizerEarlyEP(
     "sanitizer-early-opt-ep", cl::Optional,
-    cl::desc("Insert sanitizers on OptimizerEarlyEP."), cl::init(false));
+    cl::desc("Insert sanitizers on OptimizerEarlyEP."));
 
 extern cl::opt<InstrProfCorrelator::ProfCorrelatorKind> ProfileCorrelate;
 
 // Re-link builtin bitcodes after optimization
 cl::opt<bool> ClRelinkBuiltinBitcodePostop(
     "relink-builtin-bitcode-postop", cl::Optional,
-    cl::desc("Re-link builtin bitcodes after optimization."), cl::init(false));
+    cl::desc("Re-link builtin bitcodes after optimization."));
 } // namespace llvm
 
 namespace {

clang/lib/CodeGen/CGExpr.cpp

@@ -56,8 +56,7 @@ using namespace CodeGen;
 // Experiment to make sanitizers easier to debug
 static llvm::cl::opt<bool> ClSanitizeDebugDeoptimization(
     "ubsan-unique-traps", llvm::cl::Optional,
-    llvm::cl::desc("Deoptimize traps for UBSAN so there is 1 trap per check"),
-    llvm::cl::init(false));
+    llvm::cl::desc("Deoptimize traps for UBSAN so there is 1 trap per check"));
 
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