i386: remove incorrect PAE comment

@@ -104,7 +104,7 @@ static void set_pte_pfn(unsigned long va
  * Associate a large virtual page frame with a given physical page frame 
  * and protection flags for that frame. pfn is for the base of the page,
  * vaddr is what the page gets mapped to - both must be properly aligned. 
- * The pmd must already be instantiated. Assumes PAE mode.
+ * The pmd must already be instantiated.
  */ 
 void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
 {