Remove CMake custom compiler flags for RELEASE and DEBUG build

This overwrites the default that cmake automatically sets. In the
case of debug builds, this breaks debugging as -O1 already optimises
many variables away.

Change-Id: I3ca6965799b23d542ababc3e38880317cb46a3ac
Acked-by: Frank Lichtenheld <[email protected]>
Message-Id: <[email protected]>
URL: https://www.mail-archive.com/search?l=mid&[email protected]
Signed-off-by: Gert Doering <[email protected]>

CMakeLists.txt

@@ -79,10 +79,6 @@ if (MSVC)
         add_link_options("$<$<CONFIG:Release>:/CETCOMPAT>")
     endif()
 else ()
-    set(CMAKE_C_FLAGS_RELEASE "-O2")
-    set(CMAKE_CXX_FLAGS_RELEASE "-O2")
-    set(CMAKE_C_FLAGS_DEBUG "-g -O1")
-    set(CMAKE_CXX_FLAGS_DEBUG "-g -O1")
     add_compile_options(-Wall -Wuninitialized)
     check_c_compiler_flag(-Wno-stringop-truncation NoStringOpTruncation)