Correct the dependencies for main/slideshow tests which sometimes breaks the build,

as if util isn't built before test libslideshow.so is unavailable to link with.
Also don't include the gtest main() function for the demoshow "test"; it doesn't
link even with this patch but at least it doesn't complain about missing gtest
APIs but only about a missing main().

slideshow/prj/build.lst

@@ -9,4 +9,4 @@ pe	slideshow\source\engine\transitions		nmake	-	all	pe_transitions pe_inc NULL
 pe	slideshow\source\engine\animationnodes	nmake	-	all	pe_animationnodes pe_inc NULL
 pe	slideshow\source\engine\activities		nmake	-	all	pe_activities pe_inc NULL
 pe	slideshow\util							nmake	-	all	pe_util pe_shapes pe_slide pe_activities pe_animationnodes pe_transitions pe_engine NULL
-pe	slideshow\test							nmake	-	all	pe_test pe_shapes pe_slide pe_activities pe_animationnodes pe_transitions pe_engine pe_inc NULL
+pe	slideshow\test							nmake	-	all	pe_test pe_util pe_inc NULL

slideshow/test/makefile.mk

@@ -76,8 +76,7 @@ APP1TEST = enabled
 
 # BEGIN target2 --------------------------------------------------------
 APP2OBJS=  \
-    $(SLO)$/demoshow.obj \
-    $(SLO)$/main.obj
+    $(SLO)$/demoshow.obj
 
 APP2TARGET= demoshow
 APP2STDLIBS=$(TOOLSLIB) 		\