Remove xcode-specific Config.h

[labath]

Summary

Now that the xcode project is removed, we no longer need/use the
hand-maintained Config.h file, as everything is configured through
cmake.

This patch deletes that file and reverts some of the changes from
r300372, which were made to support this use case.

[sgraenitz]

Originally introduced with D31969. LGTM. Maybe we can remove even more? (here or in future commits)

[labath]

In D65862#1618740, @sgraenitz wrote:

Originally introduced with D31969. LGTM. Maybe we can remove even more? (here or in future commits)

I don't see what more could be removed here. Most of that patch was about setting up the infrastructure to generate the Config.h in the first place (instead of a bunch of hand-maintained files). That is still it use.

[sgraenitz]

Right

cmake/modules/LLDBConfig.cmake

 endif()
 if(NOT DEFINED LLDB_VERSION_SUFFIX)
   set(LLDB_VERSION_SUFFIX ${LLVM_VERSION_SUFFIX})
 endif()
 set(LLDB_VERSION "${LLDB_VERSION_MAJOR}.${LLDB_VERSION_MINOR}.${LLDB_VERSION_PATCH}${LLDB_VERSION_SUFFIX}")
 message(STATUS "LLDB version: ${LLDB_VERSION}")
 
 include_directories(BEFORE
-  ${CMAKE_CURRENT_SOURCE_DIR}/include
   ${CMAKE_CURRENT_BINARY_DIR}/include
+  ${CMAKE_CURRENT_SOURCE_DIR}/include
   )
 
 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
   install(DIRECTORY include/
     COMPONENT lldb-headers
     DESTINATION include
     FILES_MATCHING
     PATTERN "*.h"
     PATTERN ".svn" EXCLUDE
     PATTERN ".cmake" EXCLUDE
-    PATTERN "Config.h" EXCLUDE
     )
 
   install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/
     COMPONENT lldb-headers
     DESTINATION include
     FILES_MATCHING
     PATTERN "*.h"
     PATTERN ".svn" EXCLUDE

include/lldb/Host/Config.h

-//===-- Config.h ------------------------------------------------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLDB_HOST_CONFIG_H
-#define LLDB_HOST_CONFIG_H
- 
-#if defined(__APPLE__)
-
-// This block of code only exists to keep the Xcode project working in the
-// absence of a configuration step.
-#define LLDB_LIBDIR_SUFFIX ""
-
-#define LLDB_CONFIG_TERMIOS_SUPPORTED 1
-
-#define LLDB_EDITLINE_USE_WCHAR 1
-
-#define LLDB_HAVE_EL_RFUNC_T 1
-
-#define HAVE_SYS_EVENT_H 1
-
-#define HAVE_PPOLL 0
-
-#define HAVE_SIGACTION 1
-
-#define HAVE_LIBCOMPRESSION 1
-
-#else
-
-#error This file is only used by the Xcode build.
-
-#endif
-
-#endif // #ifndef LLDB_HOST_CONFIG_H