diff --git a/openmp/libomptarget/deviceRTLs/common/src/libcall.cu b/openmp/libomptarget/deviceRTLs/common/src/libcall.cu
--- a/openmp/libomptarget/deviceRTLs/common/src/libcall.cu
+++ b/openmp/libomptarget/deviceRTLs/common/src/libcall.cu
@@ -316,11 +316,6 @@
   return rc;
 }
 
-EXTERN int omp_is_initial_device(void) {
-  PRINT0(LD_IO, "call omp_is_initial_device() returns 0\n");
-  return 0; // 0 by def on device
-}
-
 // Unspecified on the device.
 EXTERN int omp_get_initial_device(void) {
   PRINT0(LD_IO, "call omp_get_initial_device() returns 0\n");
diff --git a/openmp/libomptarget/deviceRTLs/interface.h b/openmp/libomptarget/deviceRTLs/interface.h
--- a/openmp/libomptarget/deviceRTLs/interface.h
+++ b/openmp/libomptarget/deviceRTLs/interface.h
@@ -89,7 +89,6 @@
 EXTERN int omp_get_num_devices(void);
 EXTERN int omp_get_num_teams(void);
 EXTERN int omp_get_team_num(void);
-EXTERN int omp_is_initial_device(void);
 EXTERN int omp_get_initial_device(void);
 EXTERN int omp_get_max_task_priority(void);