diff --git a/srclibs/BingTranslator.yml b/srclibs/BingTranslator.yml
index 15be24c639..96bdd25069 100644
--- a/srclibs/BingTranslator.yml
+++ b/srclibs/BingTranslator.yml
@@ -1,12 +1,2 @@
-# Source details (the only mandatory fields)
 RepoType: git
 Repo: https://github.com/boatmeme/microsoft-translator-java-api.git
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
-Subdir: 
-
-# Any extra commands to prepare the source library
-Prepare: |
-  
diff --git a/srclibs/BouncyCastle.yml b/srclibs/BouncyCastle.yml
index 2b3374a9d2..4ac717ce27 100644
--- a/srclibs/BouncyCastle.yml
+++ b/srclibs/BouncyCastle.yml
@@ -1,12 +1,2 @@
-# Source details (the only mandatory fields)
 RepoType: git
 Repo: https://github.com/bcgit/bc-java.git
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
-Subdir: 
-
-# Any extra commands to prepare the source library
-Prepare: |
-  
diff --git a/srclibs/FluffyLocations.yml b/srclibs/FluffyLocations.yml
index 2eb4ee8aa7..b8f488f847 100644
--- a/srclibs/FluffyLocations.yml
+++ b/srclibs/FluffyLocations.yml
@@ -1,12 +1,3 @@
-# Source details (the only mandatory fields)
 RepoType: svn
 Repo: http://little-fluffy-location-library.googlecode.com/svn/trunk/
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
 Subdir: little-fluffy-location-library/LittleFluffyLocationLibrary
-
-# Any extra commands to prepare the source library
-Prepare: |
-  
diff --git a/srclibs/JSoup.yml b/srclibs/JSoup.yml
index 718cc25430..be8b3212f1 100644
--- a/srclibs/JSoup.yml
+++ b/srclibs/JSoup.yml
@@ -1,12 +1,2 @@
-# Source details (the only mandatory fields)
 RepoType: git
 Repo: https://github.com/jhy/jsoup.git
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
-Subdir: 
-
-# Any extra commands to prepare the source library
-Prepare: |
-  
diff --git a/srclibs/MSQLite.yml b/srclibs/MSQLite.yml
index fb16c02e3f..75eb973471 100644
--- a/srclibs/MSQLite.yml
+++ b/srclibs/MSQLite.yml
@@ -1,12 +1,2 @@
-# Source details (the only mandatory fields)
 RepoType: git
 Repo: https://github.com/mick88/MSQLite.git
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
-Subdir: 
-
-# Any extra commands to prepare the source library
-Prepare: |
-  
diff --git a/srclibs/SystemBarTint.yml b/srclibs/SystemBarTint.yml
index bcb6fdec9c..db106cbb34 100644
--- a/srclibs/SystemBarTint.yml
+++ b/srclibs/SystemBarTint.yml
@@ -1,12 +1,3 @@
-# Source details (the only mandatory fields)
 RepoType: git
 Repo: https://github.com/jgilfelt/SystemBarTint
-
-# Comma-separated list of subdirs to use. The first existing subdirectory
-# found between those given will be used. If none is found or provided, the
-# root of the repo directory will be used instead.
 Subdir: library
-
-# Any extra commands to prepare the source library
-Prepare: |
-