PB-865 : remove forced clampToGround for KML polyline in 3D

KML are well able to set that themselves if they require it, and some use cases need this to be false (flight tracks)

src/modules/map/components/cesium/CesiumKMLLayer.vue

@@ -1,5 +1,5 @@
 <script setup>
-import { ArcType, Color, HeightReference, KmlDataSource, LabelStyle, VerticalOrigin } from 'cesium'
+import { Color, HeightReference, KmlDataSource, LabelStyle, VerticalOrigin } from 'cesium'
 import { computed, inject, onBeforeUnmount, onMounted, toRefs, watch } from 'vue'
 
 import KMLLayer from '@/api/layers/KMLLayer.class.js'
@@ -42,7 +42,6 @@ function addKmlLayer() {
                 kmlDataSource.entities.values.forEach((entity) => {
                     let geometry
                     let alphaToApply = 0.2
-                    let clampToGround = false
                     if (entity.ellipse) {
                         geometry = entity.ellipse
                     }
@@ -52,7 +51,6 @@ function addKmlLayer() {
                     if (entity.polyline) {
                         geometry = entity.polyline
                         alphaToApply = 0.5
-                        clampToGround = true
                     }
                     if (entity.billboard) {
                         entity.billboard.heightReference = HeightReference.CLAMP_TO_GROUND
@@ -68,10 +66,6 @@ function addKmlLayer() {
                         label.style = LabelStyle.FILL_AND_OUTLINE
                     }
                     if (geometry) {
-                        if (clampToGround) {
-                            geometry.arcType = ArcType.GEODESIC
-                            geometry.clampToGround = true
-                        }
                         if (geometry.material?.color) {
                             geometry.material.color = geometry.material.color
                                 .getValue()