Cleanup: remove old memory atoms

Memory stats has been migrated to ProcessMemorySnapshot. This CL cleans
up the old atoms:
- remove telemetry-specific additions to ProcessMemoryState
- remove NativeProcessMemoryState atom
- move reading process cmdline under stats

Bug: 140986627
Test: atest MemoryStatUtilTest
Test: atest ProcfsMemoryUtilTest
Test: atest UidAtomTests#testProcessMemoryState
Change-Id: I5339577184d17e5cef6d657cf9b08a2fb8e75fca
diff --git a/cmds/statsd/src/external/StatsPullerManager.cpp b/cmds/statsd/src/external/StatsPullerManager.cpp
index 7a183a3..43e33f5 100644
--- a/cmds/statsd/src/external/StatsPullerManager.cpp
+++ b/cmds/statsd/src/external/StatsPullerManager.cpp
@@ -145,16 +145,11 @@
          {.puller = new ResourceHealthManagerPuller(android::util::BATTERY_CYCLE_COUNT)}},
         // process_memory_state
         {android::util::PROCESS_MEMORY_STATE,
-         {.additiveFields = {4, 5, 6, 7, 8, 9},
+         {.additiveFields = {4, 5, 6, 7, 8},
           .puller = new StatsCompanionServicePuller(android::util::PROCESS_MEMORY_STATE)}},
-        // native_process_memory_state
-        {android::util::NATIVE_PROCESS_MEMORY_STATE,
-         {.additiveFields = {3, 4, 5, 6, 8},
-          .puller = new StatsCompanionServicePuller(android::util::NATIVE_PROCESS_MEMORY_STATE)}},
         // process_memory_high_water_mark
         {android::util::PROCESS_MEMORY_HIGH_WATER_MARK,
-         {.additiveFields = {3},
-          .puller =
+         {.puller =
                   new StatsCompanionServicePuller(android::util::PROCESS_MEMORY_HIGH_WATER_MARK)}},
         // process_memory_snapshot
         {android::util::PROCESS_MEMORY_SNAPSHOT,