moved xml env to correct place

org.eclipse.stem/releng/org.eclipse.stem.tycho.configuration/pom.xml

diff --git a/org.eclipse.stem/releng/org.eclipse.stem.tycho.configuration/pom.xml b/org.eclipse.stem/releng/org.eclipse.stem.tycho.configuration/pom.xml
index 77823c8..004feae 100755
--- a/org.eclipse.stem/releng/org.eclipse.stem.tycho.configuration/pom.xml
+++ b/org.eclipse.stem/releng/org.eclipse.stem.tycho.configuration/pom.xml
@@ -48,19 +48,6 @@
 				<artifactId>tycho-p2-repository-plugin</artifactId>
 				<version>2.2.0</version>
 			</plugin>
-
-
-			<plugin>
-				<groupId>org.eclipse.tycho</groupId>
-				<artifactId>target-platform-configuration</artifactId>
-				<version>${tycho.version}</version>
-				<configuration>
-					<!--workaround bug 532302: set EE to JavASE-11 to make sure we resolve 
-						Import-Package: javax.annoation against bundle javax.annotation (as opposed 
-						to system package from bundle's BREE JavaSE-1.8) -->
-					<executionEnvironment>JavaSE-11</executionEnvironment>
-				</configuration>
-			</plugin>
 			
 			<plugin>
 				<groupId>org.eclipse.tycho</groupId>
@@ -122,6 +109,10 @@
 							<arch>x86_64</arch>
 						</environment>
 					</environments>
+					<!--workaround bug 532302: set EE to JavASE-11 to make sure we resolve 
+						Import-Package: javax.annoation against bundle javax.annotation (as opposed 
+						to system package from bundle's BREE JavaSE-1.8) -->
+					<executionEnvironment>JavaSE-11</executionEnvironment>
 				</configuration>
 			</plugin>
 		</plugins>