Make -base compile almost without warnings again. Fixes:

- Using the correct format specifier
- Remove substringFromRange: (GNUstep extension) from NSString.h and use the non-deprecated version in -base.
- Delete definitions of methods that are the same in both a class and a category on that class (NSArray and NSObject).

Two files still have warnings:

- The GNUTLS stuff is using a load of deprecated APIs.
- xmlparse.m replaces a method using a category.  This method seems to always return nil.  Not sure what it's meant to do, or why it isn't a delegate of some kind.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33756 72102866-910b-0410-8b05-ffd578937521

Source/NSObject.m

@@ -2308,21 +2308,6 @@ static id gs_weak_load(id obj)
   return [self instanceMethodForSelector:aSel];
 }
 
-+ (NSMethodSignature*) instanceMethodSignatureForSelector: (SEL)aSelector
-{
-  struct objc_method* mth;
-
-  if (aSelector == 0)
-    [NSException raise: NSInvalidArgumentException
-		format: @"%@ null selector given", NSStringFromSelector(_cmd)];
-
-  mth = GSGetMethod(self, aSelector, YES, YES);
-  if (0 == mth)
-    return nil;
-  return [NSMethodSignature
-    signatureWithObjCTypes: method_getTypeEncoding(mth)];
-}
-
 - (IMP) methodFor: (SEL)aSel
 {
   return [self methodForSelector: aSel];