Address some review comments

src/core/hle/kernel/k_page_table_base.cpp

@@ -96,9 +96,11 @@ constexpr Common::MemoryPermission ConvertToMemoryPermission(KMemoryPermission p
     if (True(perm & KMemoryPermission::UserWrite)) {
         perms |= Common::MemoryPermission::Write;
     }
+#ifdef ARCHITECTURE_arm64
     if (True(perm & KMemoryPermission::UserExecute)) {
         perms |= Common::MemoryPermission::Execute;
     }
+#endif
     return perms;
 }
 

src/core/hle/kernel/k_process.h

@@ -472,10 +472,6 @@ public:
         return m_post_handlers;
     }
 
-    KernelCore& GetKernel() noexcept {
-        return m_kernel;
-    }
-
 public:
     // Attempts to insert a watchpoint into a free slot. Returns false if none are available.
     bool InsertWatchpoint(KProcessAddress addr, u64 size, DebugWatchpointType type);