Enable envars for run configs (#6765)

Fixes #6746

Author: stevemessick

flutter-idea/src/io/flutter/run/FlutterConfigurationEditorForm.form

@@ -42,15 +42,6 @@
         </constraints>
         <properties/>
       </component>
-      <component id="9a5c8" class="javax.swing.JLabel">
-        <constraints>
-          <grid row="7" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
-        </constraints>
-        <properties>
-          <enabled value="false"/>
-          <text value="An optional build flavor; either a Gradle product flavor or an Xcode custom scheme."/>
-        </properties>
-      </component>
       <component id="45360" class="javax.swing.JLabel">
         <constraints>
           <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
@@ -65,7 +56,7 @@
           <grid row="2" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties>
-          <margin top="1" left="6" bottom="1" right="27"/>
+          <margin top="2" left="6" bottom="2" right="29"/>
           <text value=""/>
         </properties>
       </component>
@@ -93,7 +84,7 @@
           <grid row="4" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties>
-          <margin top="1" left="6" bottom="1" right="27"/>
+          <margin top="2" left="6" bottom="2" right="29"/>
         </properties>
       </component>
       <component id="42996" class="javax.swing.JLabel">
@@ -143,7 +134,16 @@
         </constraints>
         <properties>
           <enabled value="false"/>
-          <text value="Additional environment variables; only valid for desktop apps"/>
+          <text value="Additional environment variables."/>
+        </properties>
+      </component>
+      <component id="9a5c8" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="7" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <enabled value="false"/>
+          <text value="An optional build flavor; either a Gradle product flavor or an Xcode custom scheme."/>
         </properties>
       </component>
     </children>

flutter-idea/src/io/flutter/run/FlutterConfigurationEditorForm.java

@@ -34,22 +34,8 @@ public class FlutterConfigurationEditorForm extends SettingsEditor<SdkRunConfig>
   private EnvironmentVariablesTextFieldWithBrowseButton myEnvironmentVariables;
   private JLabel myEnvvarLabel;
 
-  private static final List<String> DESKTOP_PLATFORMS =
-    Lists.newArrayList("enable-linux-desktop", "enable-macos-desktop", "enable-windows-desktop", "enable-windows-uwp-desktop");
-
   public FlutterConfigurationEditorForm(final Project project) {
     initDartFileTextWithBrowse(project, myFileField);
-    final FlutterSdk sdk = FlutterSdk.getFlutterSdk(project);
-    if (sdk != null) {
-      final Set<String> platforms = sdk.queryConfiguredPlatforms(true);
-      for (String platform : platforms) {
-        if (DESKTOP_PLATFORMS.contains(platform)) {
-          return;
-        }
-      }
-    }
-    myEnvironmentVariables.setEnabled(false);
-    myEnvvarLabel.setEnabled(false);
   }
 
   @Override