[libomptarget-nvptx] Remove last mentions of __kmpc_print_*

Their implementation was removed during review, delete their
prototype declarations.

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@341748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/libomptarget/deviceRTLs/nvptx/src/interface.h b/libomptarget/deviceRTLs/nvptx/src/interface.h
index c3f9f70..aca8fbe 100644
--- a/libomptarget/deviceRTLs/nvptx/src/interface.h
+++ b/libomptarget/deviceRTLs/nvptx/src/interface.h
@@ -91,18 +91,6 @@
 EXTERN int omp_get_max_task_priority(void);
 
 ////////////////////////////////////////////////////////////////////////////////
-// OMPTARGET_NVPTX private (debug / temportary?) interface
-////////////////////////////////////////////////////////////////////////////////
-
-// for debug
-EXTERN void __kmpc_print_str(char *title);
-EXTERN void __kmpc_print_title_int(char *title, int data);
-EXTERN void __kmpc_print_index(char *title, int i);
-EXTERN void __kmpc_print_int(int data);
-EXTERN void __kmpc_print_double(double data);
-EXTERN void __kmpc_print_address_int64(int64_t data);
-
-////////////////////////////////////////////////////////////////////////////////
 // file below is swiped from kmpc host interface
 ////////////////////////////////////////////////////////////////////////////////