mm/thp: drop unused trace events hugepage_[invalidate|splitting]

The trace events hugepage_[invalidate|splitting], were added via the
commit 9e813308 ("powerpc/thp: Add tracepoints to track hugepage
invalidate").  Afterwards their call sites i.e
trace_hugepage_[invalidate|splitting] were just dropped off, leaving
these trace points unused.

Link: https://lkml.kernel.org/r/1641546351-15109-1-git-send-email-anshuman.khandual@arm.comSigned-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/trace/events/thp.h

@@ -8,24 +8,6 @@
 #include <linux/types.h>
 #include <linux/tracepoint.h>
 
-TRACE_EVENT(hugepage_invalidate,
-
-	    TP_PROTO(unsigned long addr, unsigned long pte),
-	    TP_ARGS(addr, pte),
-	    TP_STRUCT__entry(
-		    __field(unsigned long, addr)
-		    __field(unsigned long, pte)
-		    ),
-
-	    TP_fast_assign(
-		    __entry->addr = addr;
-		    __entry->pte = pte;
-		    ),
-
-	    TP_printk("hugepage invalidate at addr 0x%lx and pte = 0x%lx",
-		      __entry->addr, __entry->pte)
-);
-
 TRACE_EVENT(hugepage_set_pmd,
 
 	    TP_PROTO(unsigned long addr, unsigned long pmd),
@@ -65,23 +47,6 @@ TRACE_EVENT(hugepage_update,
 
 	    TP_printk("hugepage update at addr 0x%lx and pte = 0x%lx clr = 0x%lx, set = 0x%lx", __entry->addr, __entry->pte, __entry->clr, __entry->set)
 );
-TRACE_EVENT(hugepage_splitting,
-
-	    TP_PROTO(unsigned long addr, unsigned long pte),
-	    TP_ARGS(addr, pte),
-	    TP_STRUCT__entry(
-		    __field(unsigned long, addr)
-		    __field(unsigned long, pte)
-		    ),
-
-	    TP_fast_assign(
-		    __entry->addr = addr;
-		    __entry->pte = pte;
-		    ),
-
-	    TP_printk("hugepage splitting at addr 0x%lx and pte = 0x%lx",
-		      __entry->addr, __entry->pte)
-);
 
 #endif /* _TRACE_THP_H */