chore: remove `MeshServiceTest`

app/src/main/java/com/geeksville/mesh/service/MeshService.kt

@@ -1053,7 +1053,7 @@ class MeshService : Service(), Logging {
                 val rxTime = if (packet.rxTime != 0) packet.rxTime else currentSecond()
 
                 // Update our last seen based on any valid timestamps.  If the device didn't provide a timestamp make one
-                updateNodeInfoTime(it, rxTime)
+                it.lastHeard = rxTime
                 it.snr = packet.rxSnr
                 it.rssi = packet.rxRssi
 
@@ -1997,7 +1997,3 @@ class MeshService : Service(), Logging {
         }
     }
 }
-
-fun updateNodeInfoTime(it: NodeInfo, rxTime: Int) {
-    it.lastHeard = rxTime
-}

app/src/test/java/com/geeksville/mesh/service/MeshServiceTest.kt

@@ -1,24 +0,0 @@
-package com.geeksville.mesh.service
-
-import com.geeksville.mesh.MeshProtos
-import com.geeksville.mesh.MeshUser
-import com.geeksville.mesh.NodeInfo
-import com.geeksville.mesh.Position
-import org.junit.Assert
-import org.junit.Test
-
-
-class MeshServiceTest {
-    val model = MeshProtos.HardwareModel.ANDROID_SIM
-    val nodeInfo = NodeInfo(4, MeshUser("+one", "User One", "U1", model), Position(37.1, 121.1, 35, 10))
-
-    @Test
-    fun givenNodeInfo_whenUpdatingWithNewTime_thenPositionTimeIsUpdated() {
-
-        val newerTime = 20
-        updateNodeInfoTime(nodeInfo, newerTime)
-        Assert.assertEquals(newerTime, nodeInfo.lastHeard)
-    }
-}
-
-