Cleanup tutorial and fastplay scripts

- Assign tech to artifact directly in fastplay.
- Don't add an oilResource which appears to come with the map, nor does the artifact seemingly exist anymore at the start.

data/base/script/fastplay/fastdemo.js

@@ -174,11 +174,10 @@ function eventStartLevel()
 		},
 	});
 
-	camSafeRemoveObject("flamerArti", false);
 	camSetArtifacts({
 		"base1Factory": { tech: ["R-Defense-Tower01", "R-Wpn-MG-Damage02"] },
 		"base1PowerGenerator": { tech: "R-Struc-PowerModuleMk1" },
-		"artifactPos": { tech: "R-Wpn-Flamer01Mk1" },
+		"flamerArti": { tech: "R-Wpn-Flamer01Mk1" },
 		"radarTower": { tech: "R-Sys-Sensor-Turret01" },
 		"base2Factory": { tech: ["R-Vehicle-Prop-Halftracks", "R-Wpn-Flamer-Damage01"] },
 		"bunkerArti": { tech: ["R-Sys-Engineering01", "R-Sys-MobileRepairTurret01" ]},

data/base/script/tutorial.js

@@ -508,9 +508,6 @@ function eventStartLevel()
 	setStructureLimits(cam_base_structures.powerGenerator, 1, CAM_HUMAN_PLAYER);
 	setStructureLimits(cam_base_structures.researchLab, 1, CAM_HUMAN_PLAYER);
 
-	camSafeRemoveObject("mgArtifact", false);
-	addFeature("OilResource", 24, 26);
-
 	setMiniMap(true);
 	setDesign(false);