diff --git a/.hgtags b/.hgtags
deleted file mode 100644
index 4346847fec507cd1c84deb57fb600a27e995e210..0000000000000000000000000000000000000000
--- a/.hgtags
+++ /dev/null
@@ -1,2 +0,0 @@
-cd6299d53b7ffa10752111cb90c4eec9958cc0f8 before_promises
-e5aa9761f361e2e8e74e41169640111bd44011f3 package_loading_ok
diff --git a/Rpkgsource/.project b/Rpkgsource/.project
deleted file mode 100644
index 8b353ce954c7659cfaaad23ed0821f94a0c7ad23..0000000000000000000000000000000000000000
--- a/Rpkgsource/.project
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>Rpkgsource</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-	</buildSpec>
-	<natures>
-	</natures>
-</projectDescription>
diff --git a/com.oracle.truffle.r.native.recommended/.project b/com.oracle.truffle.r.native.recommended/.project
deleted file mode 100644
index 3242ad0404f293a64e20f285c8d9cc66ecbd1877..0000000000000000000000000000000000000000
--- a/com.oracle.truffle.r.native.recommended/.project
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>com.oracle.truffle.r.native.recommended</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
-			<triggers>full,incremental,</triggers>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.cdt.core.cnature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
-	</natures>
-</projectDescription>
diff --git a/com.oracle.truffle.r.parser/gramgen.bat b/com.oracle.truffle.r.parser/gramgen.bat
deleted file mode 100644
index f5ffa82518550825cbfeeb53b8a1411f35029902..0000000000000000000000000000000000000000
--- a/com.oracle.truffle.r.parser/gramgen.bat
+++ /dev/null
@@ -1,3 +0,0 @@
-
-java -jar antlr-3.5-complete.jar  -o src/truffle/r/parser/ src/truffle/r/parser/R.g
-