Remove name and classname from mjmWrap.

PiperOrigin-RevId: 609563968
Change-Id: Ic69b95412ec5914fb5a8dcd134c7e6e733bc05b0

src/user/user_api.h

@@ -582,8 +582,6 @@ typedef struct _mjmTendon {        // tendon specification
 
 typedef struct _mjmWrap {          // wrapping object specification
   mjElement element;               // internal, do not modify
-  mjString name;                   // name
-  mjString classname;              // class name
   mjString info;                   // message appended to errors
 } mjmWrap;
 

src/user/user_objects.cc

@@ -4142,8 +4142,6 @@ mjCWrap::mjCWrap(mjCModel* _model, mjCTendon* _tendon) {
 
 void mjCWrap::PointToLocal() {
   spec.element = (mjElement)this;
-  spec.name = (mjString)&name;
-  spec.classname = (mjString)&classname;
   spec.info = (mjString)&info;
 }
 

src/user/user_objects.h

@@ -1135,8 +1135,6 @@ class mjCWrap : public mjCBase, private mjmWrap {
 
  public:
   mjmWrap spec;
-  using mjCBase::name;
-  using mjCBase::classname;
   using mjCBase::info;
 
   void PointToLocal();