Compactify SPDX tags in README files

modules/database/src/template/top/exampleBoot/ioc/README@Common

@@ -10,6 +10,4 @@ st.cmd's dbLoadDatabase() command before starting the ioc.
 
 
 SPDX-FileCopyrightText: 2001 Argonne National Laboratory
-
 SPDX-License-Identifier: EPICS
-

modules/database/src/template/top/exampleBoot/ioc/README@RTEMS

@@ -7,6 +7,4 @@ etc.) and start it.
 
 
 SPDX-FileCopyrightText: 2001 Lawrence Berkeley National Laboratory
-
 SPDX-License-Identifier: EPICS
-

modules/database/src/template/top/exampleBoot/ioc/README@vxWorks

@@ -1,3 +0,0 @@
-SPDX-FileCopyrightText: 2001 Argonne National Laboratory
-
-SPDX-License-Identifier: EPICS

src/template/ext/top/README

@@ -5,7 +5,4 @@ must add the extension directory name to src/Makefile.
 
 
 SPDX-FileCopyrightText: 2000 Argonne National laboratory
-
 SPDX-License-Identifier: EPICS
-
-