--- a/make/hotspot/lib/CompileDtracePreJvm.gmk	Mon Apr 16 09:57:46 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,39 +0,0 @@
-#
-# Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
-# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-#
-# This code is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-ifeq ($(call check-jvm-feature, dtrace), true)
-  ifeq ($(OPENJDK_TARGET_OS), solaris)
-    # These files are are generated by CompileDtrace.gmk but consumed by
-    # CompileJvm.gmk
-    DTRACE_OBJ := $(JVM_OUTPUTDIR)/objs/dtrace.o
-    DTRACE_JHELPER_OBJ := $(JVM_OUTPUTDIR)/objs/dtrace_jhelper.o
-    DTRACE_EXTRA_OBJECT_FILES := $(DTRACE_OBJ) $(DTRACE_JHELPER_OBJ)
-
-    # Since we cannot generate JvmOffsets.cpp as part of the gensrc step,
-    # we need this special hook to get it to compile with the rest of libjvm.
-    JVM_OFFSETS_CPP := $(DTRACE_SUPPORT_DIR)/JvmOffsets.cpp
-    DTRACE_EXTRA_SOURCE_FILES := $(JVM_OFFSETS_CPP)
-  endif
-endif