Use smaps_rollup everywhere

Author: ktf

CMakeLists.txt

@@ -209,7 +209,6 @@ target_compile_definitions(Monitoring
     $<$<BOOL:${APPLE}>:O2_MONITORING_OS_MAC>
     $<$<BOOL:${LINUX}>:O2_MONITORING_OS_LINUX>
     $<$<BOOL:${CC7}>:O2_MONITORING_OS_CC7>
-    $<$<BOOL:${CS8}>:O2_MONITORING_OS_CS8>
     $<$<BOOL:${ApMon_FOUND}>:O2_MONITORING_WITH_APPMON>
     $<$<BOOL:${RdKafka_FOUND}>:O2_MONITORING_WITH_KAFKA>
     $<$<BOOL:${CURL_FOUND}>:O2_MONITORING_WITH_CURL>

src/ProcessMonitor.cxx

@@ -31,11 +31,7 @@ namespace o2
 namespace monitoring
 {
 
-#ifdef O2_MONITORING_OS_CS8
 static constexpr auto SMAPS_FILE = "/proc/self/smaps_rollup";
-#else
-static constexpr auto SMAPS_FILE = "/proc/self/smaps";
-#endif
 
 ProcessMonitor::ProcessMonitor()
 {