Apply suggestions from code review

Co-authored-by: Jan Kotas <jkotas@microsoft.com>

src/coreclr/nativeaot/Runtime/GCHelpers.cpp

@@ -38,10 +38,9 @@ GPTR_IMPL(Thread, g_pFinalizerThread);
 
 bool RhInitializeFinalization();
 
-// Perform any runtime-startup initialization needed by the GC, HandleTable or environmental code in gcrhenv.
-// The boolean parameter should be true if a server GC is required and false for workstation. Returns true on
-// success or false if a subsystem failed to initialize.
-bool InitializeSubsystems()
+// Perform any runtime-startup initialization needed by the GC, HandleTable or environmental code in gcenv.ee.
+// Returns true on success or false if a subsystem failed to initialize.
+bool InitializeGC()
 {
     // Initialize the special MethodTable used to mark free list entries in the GC heap.
     g_FreeObjectEEType.InitializeAsGcFreeType();

src/coreclr/nativeaot/Runtime/startup.cpp

@@ -88,7 +88,7 @@ extern "C" volatile GSCookie __security_cookie = 0;
 static RhConfig g_sRhConfig;
 RhConfig* g_pRhConfig = &g_sRhConfig;
 
-bool InitializeSubsystems();
+bool InitializeGC();
 
 static bool InitDLL(HANDLE hPalInstance)
 {
@@ -150,7 +150,7 @@ static bool InitDLL(HANDLE hPalInstance)
 
     STARTUP_TIMELINE_EVENT(NONGC_INIT_COMPLETE);
 
-    if (!InitializeSubsystems())
+    if (!InitializeGC())
         return false;
 
     STARTUP_TIMELINE_EVENT(GC_INIT_COMPLETE);