build(mingw): use dwarf debug info

As it turns out, LLDB can load Windows crash dumps!

This allows us go back to the regular (better supported) DWARF debuginfo
format used by MinGW, as now we have a tool that can both parse those
symbols *and* Windows' crash dumps. The biggest advantage here is that
once again, MinGW crash dumps can be easily inspected on Linux

Signed-off-by: Seth Flynn <getchoo@tuta.io>

CMakeLists.txt

@@ -79,15 +79,6 @@ else()
     if(WIN32)
         set(CMAKE_EXE_LINKER_FLAGS "-Wl,--stack,8388608 ${CMAKE_EXE_LINKER_FLAGS}")
 
-        # Emit PDBs for WinDbg, etc.
-        add_compile_options($<$<AND:$<CONFIG:Debug,RelWithDebInfo>,$<COMPILE_LANGUAGE:C,CXX>>:-gcodeview>)
-        add_link_options($<$<AND:$<CONFIG:Debug,RelWithDebInfo>,$<COMPILE_LANGUAGE:C,CXX>>:-Wl,--pdb=>)
-        foreach(lang C CXX)
-            # Force-enabling this to use generator expressions like TARGET_PDB_FILE
-            # (and because we can actually emit PDBs)
-            set("CMAKE_${lang}_LINKER_SUPPORTS_PDB" ON)
-        endforeach()
-
         # -ffunction-sections and -fdata-sections help reduce binary size
         # -mguard=cf enables Control Flow Guard
         # TODO: Look into -gc-sections to further reduce binary size