Get rid of CONSISTENT_DEBUG_LIGHT

Setting CONSISTENT_DEBUG_LIGHT is a no-op if CONSISTENT_DEBUG is enabled (which is the default).
commit_hash:0974798f81275ed0c47471a22dbac38be0af553f

Author: georgthegreat

build/conf/compilers/gnu_compiler.conf

@@ -178,18 +178,6 @@ elsewhen ($CONSISTENT_DEBUG == "yes") {
     }
     YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=--replace=${ARCADIA_BUILD_ROOT}=/-B --replace=${ARCADIA_ROOT}=/-S --replace=$(TOOL_ROOT)=/-T ${env:"YASM_TEST_SUITE=1"}
 }
-elsewhen ($CONSISTENT_DEBUG_LIGHT == "yes") {
-    when ($CLANG == "yes") {
-        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -Xclang -fdebug-compilation-dir -Xclang /tmp
-    }
-    otherwise {
-        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B
-        when ($ARCH_XTENSA == "yes") {
-            CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=
-        }
-    }
-    YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=--replace=${ARCADIA_BUILD_ROOT}=/-B ${env:"YASM_TEST_SUITE=1"}
-}
 
 when ($OS_LINUX == "yes" || $OS_DARWIN == "yes" || $OS_WINDOWS == "yes") {
     # Some android toolchains using old compilers which didn't support some flags (f.e. -fmacro-prefix-map)