Do not distribute unminimized artifacts

The build process is capable of bundling both minimized and unminimized
artifacts for lib-jitsi-meet, jitsi-meet and external_api. However,
there does not seem to be a good reason to (1) always wait for the
building of the two versions and (2) distributing the unminimized
artifacts.

Makefile

 	$(NPM) update && $(NPM) install node-sass
 
 compile:
-	$(WEBPACK)
 	$(WEBPACK) -p
 
 clean:
 
 deploy-appbundle:
 	cp \
-		$(BUILD_DIR)/app.bundle.js \
-		$(BUILD_DIR)/app.bundle.js.map \
 		$(BUILD_DIR)/app.bundle.min.js \
 		$(BUILD_DIR)/app.bundle.min.map \
-		$(BUILD_DIR)/external_api.js \
-		$(BUILD_DIR)/external_api.js.map \
 		$(BUILD_DIR)/external_api.min.js \
 		$(BUILD_DIR)/external_api.min.map \
 		$(OUTPUT_DIR)/analytics.js \
 
 deploy-lib-jitsi-meet:
 	cp \
-		$(LIBJITSIMEET_DIR)/lib-jitsi-meet.js \
-		$(LIBJITSIMEET_DIR)/lib-jitsi-meet.js.map \
 		$(LIBJITSIMEET_DIR)/lib-jitsi-meet.min.js \
 		$(LIBJITSIMEET_DIR)/lib-jitsi-meet.min.map \
 		$(LIBJITSIMEET_DIR)/connection_optimization/external_connect.js \