diff --git a/lldb/source/Plugins/Process/POSIX/CrashReason.h b/lldb/source/Plugins/Process/POSIX/CrashReason.h
--- a/lldb/source/Plugins/Process/POSIX/CrashReason.h
+++ b/lldb/source/Plugins/Process/POSIX/CrashReason.h
@@ -54,8 +54,6 @@
 std::string GetCrashReasonString(CrashReason reason, lldb::addr_t fault_addr);
 std::string GetCrashReasonString(CrashReason reason, const siginfo_t &info);
 
-const char *CrashReasonAsString(CrashReason reason);
-
 CrashReason GetCrashReason(const siginfo_t &info);
 
 #endif // #ifndef liblldb_CrashReason_H_
diff --git a/lldb/source/Plugins/Process/POSIX/CrashReason.cpp b/lldb/source/Plugins/Process/POSIX/CrashReason.cpp
--- a/lldb/source/Plugins/Process/POSIX/CrashReason.cpp
+++ b/lldb/source/Plugins/Process/POSIX/CrashReason.cpp
@@ -247,97 +247,6 @@
   return str;
 }
 
-const char *CrashReasonAsString(CrashReason reason) {
-  const char *str = nullptr;
-
-  switch (reason) {
-  case CrashReason::eInvalidCrashReason:
-    str = "eInvalidCrashReason";
-    break;
-
-  // SIGSEGV crash reasons.
-  case CrashReason::eInvalidAddress:
-    str = "eInvalidAddress";
-    break;
-  case CrashReason::ePrivilegedAddress:
-    str = "ePrivilegedAddress";
-    break;
-  case CrashReason::eBoundViolation:
-    str = "eBoundViolation";
-    break;
-  case CrashReason::eAsyncTagCheckFault:
-    str = "eAsyncTagCheckFault";
-    break;
-  case CrashReason::eSyncTagCheckFault:
-    str = "eSyncTagCheckFault";
-    break;
-
-  // SIGILL crash reasons.
-  case CrashReason::eIllegalOpcode:
-    str = "eIllegalOpcode";
-    break;
-  case CrashReason::eIllegalOperand:
-    str = "eIllegalOperand";
-    break;
-  case CrashReason::eIllegalAddressingMode:
-    str = "eIllegalAddressingMode";
-    break;
-  case CrashReason::eIllegalTrap:
-    str = "eIllegalTrap";
-    break;
-  case CrashReason::ePrivilegedOpcode:
-    str = "ePrivilegedOpcode";
-    break;
-  case CrashReason::ePrivilegedRegister:
-    str = "ePrivilegedRegister";
-    break;
-  case CrashReason::eCoprocessorError:
-    str = "eCoprocessorError";
-    break;
-  case CrashReason::eInternalStackError:
-    str = "eInternalStackError";
-    break;
-
-  // SIGBUS crash reasons:
-  case CrashReason::eIllegalAlignment:
-    str = "eIllegalAlignment";
-    break;
-  case CrashReason::eIllegalAddress:
-    str = "eIllegalAddress";
-    break;
-  case CrashReason::eHardwareError:
-    str = "eHardwareError";
-    break;
-
-  // SIGFPE crash reasons:
-  case CrashReason::eIntegerDivideByZero:
-    str = "eIntegerDivideByZero";
-    break;
-  case CrashReason::eIntegerOverflow:
-    str = "eIntegerOverflow";
-    break;
-  case CrashReason::eFloatDivideByZero:
-    str = "eFloatDivideByZero";
-    break;
-  case CrashReason::eFloatOverflow:
-    str = "eFloatOverflow";
-    break;
-  case CrashReason::eFloatUnderflow:
-    str = "eFloatUnderflow";
-    break;
-  case CrashReason::eFloatInexactResult:
-    str = "eFloatInexactResult";
-    break;
-  case CrashReason::eFloatInvalidOperation:
-    str = "eFloatInvalidOperation";
-    break;
-  case CrashReason::eFloatSubscriptRange:
-    str = "eFloatSubscriptRange";
-    break;
-  }
-  return str;
-}
-
 CrashReason GetCrashReason(const siginfo_t &info) {
   switch (info.si_signo) {
   case SIGSEGV: