Remove copyright headers from automatically generated files

It doesn't make sense to place a copyright header in
automatically generated makefiles, plus this is a grey
area since we are extracting proprietary OEM files.

Let's be safe and replace the Apache 2.0 header with
a warning regarding manual modification of the makefiles.

Change-Id: I7cafd3f0def33efff96af60280646c44c1ba9a53
diff --git a/extract_utils.sh b/extract_utils.sh
index 2924ddd..26f1ea5 100644
--- a/extract_utils.sh
+++ b/extract_utils.sh
@@ -920,7 +920,7 @@
 #
 # $1: file which will be written to
 #
-# writes out the copyright header with the current year.
+# writes out the warning message regarding manual file modifications.
 # note that this is not an append operation, and should
 # be executed first!
 #
@@ -929,42 +929,12 @@
         rm $1
     fi
 
-    YEAR=$(date +"%Y")
-
     [ "$COMMON" -eq 1 ] && local DEVICE="$DEVICE_COMMON"
 
-    printf "/**\n" > $1
-    NUM_REGEX='^[0-9]+$'
-    if [[ ! $INITIAL_COPYRIGHT_YEAR =~ $NUM_REGEX ]] || [ $INITIAL_COPYRIGHT_YEAR -lt 2019 ]; then
-        BLUEPRINT_INITIAL_COPYRIGHT_YEAR=2019
-    else
-        BLUEPRINT_INITIAL_COPYRIGHT_YEAR=$INITIAL_COPYRIGHT_YEAR
-    fi
-
-    if [ $BLUEPRINT_INITIAL_COPYRIGHT_YEAR -eq $YEAR ]; then
-        printf " * Copyright (C) $YEAR The LineageOS Project\n" >> $1
-    elif [ $BLUEPRINT_INITIAL_COPYRIGHT_YEAR -le 2019 ]; then
-        printf " * Copyright (C) 2019-$YEAR The LineageOS Project\n" >> $1
-    else
-        printf " * Copyright (C) $BLUEPRINT_INITIAL_COPYRIGHT_YEAR-$YEAR The LineageOS Project\n" >> $1
-    fi
-
     cat << EOF >> $1
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * This file is generated by device/$VENDOR/$DEVICE/setup-makefiles.sh
- */
+// Automatically generated file. DO NOT MODIFY
+//
+// This file is generated by device/$VENDOR/$DEVICE/setup-makefiles.sh
 
 EOF
 }
@@ -974,7 +944,7 @@
 #
 # $1: file which will be written to
 #
-# writes out the copyright header with the current year.
+# writes out the warning message regarding manual file modifications.
 # note that this is not an append operation, and should
 # be executed first!
 #
@@ -983,44 +953,11 @@
         rm $1
     fi
 
-    YEAR=$(date +"%Y")
-
     [ "$COMMON" -eq 1 ] && local DEVICE="$DEVICE_COMMON"
 
-    NUM_REGEX='^[0-9]+$'
-    if [[ $INITIAL_COPYRIGHT_YEAR =~ $NUM_REGEX ]] && [ $INITIAL_COPYRIGHT_YEAR -le $YEAR ]; then
-        if [ $INITIAL_COPYRIGHT_YEAR -lt 2016 ]; then
-            printf "# Copyright (C) $INITIAL_COPYRIGHT_YEAR-2016 The CyanogenMod Project\n" > $1
-        elif [ $INITIAL_COPYRIGHT_YEAR -eq 2016 ]; then
-            printf "# Copyright (C) 2016 The CyanogenMod Project\n" > $1
-        fi
-        if [ $YEAR -eq 2017 ]; then
-            printf "# Copyright (C) 2017 The LineageOS Project\n" >> $1
-        elif [ $INITIAL_COPYRIGHT_YEAR -eq $YEAR ]; then
-            printf "# Copyright (C) $YEAR The LineageOS Project\n" >> $1
-        elif [ $INITIAL_COPYRIGHT_YEAR -le 2017 ]; then
-            printf "# Copyright (C) 2017-$YEAR The LineageOS Project\n" >> $1
-        else
-            printf "# Copyright (C) $INITIAL_COPYRIGHT_YEAR-$YEAR The LineageOS Project\n" >> $1
-        fi
-    else
-        printf "# Copyright (C) $YEAR The LineageOS Project\n" > $1
-    fi
-
     cat << EOF >> $1
+# Automatically generated file. DO NOT MODIFY
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
 # This file is generated by device/$VENDOR/$DEVICE/setup-makefiles.sh
 
 EOF
diff --git a/templates/single-device/setup-makefiles.sh b/templates/single-device/setup-makefiles.sh
index ef2aa69..c0c0db4 100755
--- a/templates/single-device/setup-makefiles.sh
+++ b/templates/single-device/setup-makefiles.sh
@@ -21,8 +21,6 @@
 DEVICE=*** FILL IN DEVICE ****
 VENDOR=*** FILL IN VENDOR ****
 
-INITIAL_COPYRIGHT_YEAR=**** FILL IN COPYRIGHT YEAR ****
-
 # Load extract_utils and do some sanity checks
 MY_DIR="${BASH_SOURCE%/*}"
 if [[ ! -d "$MY_DIR" ]]; then MY_DIR="$PWD"; fi
@@ -39,7 +37,7 @@
 # Initialize the helper
 setup_vendor "$DEVICE" "$VENDOR" "$ANDROID_ROOT"
 
-# Copyright headers and guards
+# Warning headers and guards
 write_headers
 
 write_makefiles "$MY_DIR"/proprietary-files.txt