rt: Remove virtual methods from memory_region, rust_srv

Author: brson

src/rt/memory_region.h

@@ -60,7 +60,7 @@ class memory_region {
     void *calloc(size_t size, const char *tag);
     void *realloc(void *mem, size_t size);
     void free(void *mem);
-    virtual ~memory_region();
+    ~memory_region();
  };
 
 inline void *operator new(size_t size, memory_region &region,

src/rt/rust_srv.cpp

@@ -6,8 +6,6 @@ rust_srv::rust_srv(rust_env *env) :
     local_region(this, false) {
 }
 
-rust_srv::~rust_srv() {}
-
 void
 rust_srv::free(void *p) {
     ::free(p);

src/rt/rust_srv.h

@@ -8,23 +8,22 @@ class rust_srv {
 public:
     rust_env *env;
     memory_region local_region;
-    virtual void log(char const *msg);
-    virtual void fatal(char const *expression,
+    void log(char const *msg);
+    void fatal(char const *expression,
         char const *file,
         size_t line,
         char const *format,
         ...);
-    virtual void warning(char const *expression,
+    void warning(char const *expression,
         char const *file,
         size_t line,
         char const *format,
         ...);
-    virtual void free(void *);
-    virtual void *malloc(size_t);
-    virtual void *realloc(void *, size_t);
+    void free(void *);
+    void *malloc(size_t);
+    void *realloc(void *, size_t);
     rust_srv(rust_env *);
-    virtual ~rust_srv();
-    virtual rust_srv *clone();
+    rust_srv *clone();
 };
 
 #endif /* RUST_SRV_H */