diff --git a/metadata/com.voidcode.diasporawebclient.txt b/metadata/com.voidcode.diasporawebclient.txt
index 7383563064..9fecf5f3a7 100644
--- a/metadata/com.voidcode.diasporawebclient.txt
+++ b/metadata/com.voidcode.diasporawebclient.txt
@@ -14,8 +14,6 @@ Repo:https://github.com/voidcode/Diaspora-Webclient.git
 
 Build Version:1.3,3,26d7120fea1af5835a17537bebeef6df523d57e6,target=android-10
 Build Version:1.5,6,a153d5f996f284da44d5defa25ce601fd76b53ad,target=android-10,prebuild=\
-rm -rf gen/ && \
-rm -rf bin/ && \
 mkdir libs && \
 mv google-api-translate-java-0.97.jar libs/ && \
 mv microsoft-translator-java-api-0.4-jar-with-dependencies.jar libs/
diff --git a/metadata/de.shandschuh.sparserss.txt b/metadata/de.shandschuh.sparserss.txt
index 81f148bed3..e7cf864406 100644
--- a/metadata/de.shandschuh.sparserss.txt
+++ b/metadata/de.shandschuh.sparserss.txt
@@ -22,7 +22,7 @@ Build Version:1.1.1,65,177,target=android-8
 Build Version:1.2.2,68,183,target=android-8
 Build Version:1.3,69,197,target=android-8
 Build Version:1.3.1,70,210,target=android-10
-Build Version:1.3.2,71,217,target=android-10,prebuild=rm -rf bin/
+Build Version:1.3.2,71,217,target=android-10
 Build Version:1.3.3_4,75,!No corresponding source in repo
 
 Update Check Mode:Market
diff --git a/metadata/org.mult.daap.txt b/metadata/org.mult.daap.txt
index 7208b30c40..1ebc8d551b 100644
--- a/metadata/org.mult.daap.txt
+++ b/metadata/org.mult.daap.txt
@@ -17,7 +17,7 @@ Build Version:.9.1,30,62
 Build Version:.9.2,31,!Repo code is missing at least one file update - the manifest
 Build Version:.9.6.2,38,!No corresponding source in repo
 Build Version:.9.6.5,39,89
-Build Version:.9.7,40,90,prebuild=rm -rf bin/
+Build Version:.9.7,40,90
 
 Update Check Mode:Market
 Current Version:.9.7
diff --git a/metadata/stericson.busybox.donate.txt b/metadata/stericson.busybox.donate.txt
index 713cabc73a..e2b3634331 100644
--- a/metadata/stericson.busybox.donate.txt
+++ b/metadata/stericson.busybox.donate.txt
@@ -22,7 +22,6 @@ Repo Type:git-svn
 Repo:http://busybox-android.googlecode.com/svn/trunk/
 
 Build Version:7.1,103,3,target=android-8,prebuild=\
-rm -rf gen &&\
 cd src/stericson &&\
 svn co -r 133 http://roottools.googlecode.com/svn/trunk/Developmental/RootTools_sdk3_generic/src/com/stericson/RootTools &&\
 cd ../..
diff --git a/metadata/tuioDroid.impl.txt b/metadata/tuioDroid.impl.txt
index 615a8f0ec6..8349848460 100644
--- a/metadata/tuioDroid.impl.txt
+++ b/metadata/tuioDroid.impl.txt
@@ -13,7 +13,7 @@ remote address using the TUIO protocol.
 Repo Type:svn
 Repo:http://tuiodroid.googlecode.com/svn/trunk/
 
-Build Version:1.0,4,28,subdir=TUIOdroid,prebuild=rm -rf bin && rm -rf gen,target=android-11
+Build Version:1.0,4,28,subdir=TUIOdroid,target=android-11
 
 Update Check Mode:Market
 Current Version:1.0
diff --git a/metadata/uk.co.jarofgreen.JustADamnCompass.txt b/metadata/uk.co.jarofgreen.JustADamnCompass.txt
index bcf5d3ea11..b9897592ff 100644
--- a/metadata/uk.co.jarofgreen.JustADamnCompass.txt
+++ b/metadata/uk.co.jarofgreen.JustADamnCompass.txt
@@ -12,7 +12,7 @@ A simple compass with no unnecessary extras.
 Repo Type:git
 Repo:https://github.com/jarofgreen/Just-A-Damn-Compass.git
 
-Build Version:1.1,2,32e3d60ecadac260f71da17a6cb4b22084c5bcc2,target=android-8,prebuild=rm -rf gen
+Build Version:1.1,2,32e3d60ecadac260f71da17a6cb4b22084c5bcc2,target=android-8
 
 Update Check Mode:Market