frame_superres: Make frame_superres independent of loop_restoration

The frame superresolution experiment currently makes no use of the
features of the loop restoration experiment. While this is planned for
the future, there is no reason to continue having frame superresolution
depend on loop restoration for now.

Frame superresolution was made dependent by having every preproccesor if
containing its config flag also depend on the loop restoration config
flag. Those if's are modified to only check the frame superresolution
flag by this patch.

Change-Id: Ieef47de29125af8d080739ffeac5c55a1fa99e23
diff --git a/av1/common/enums.h b/av1/common/enums.h
index 6f00635..054bd40 100644
--- a/av1/common/enums.h
+++ b/av1/common/enums.h
@@ -528,12 +528,14 @@
   RESTORE_SWITCHABLE_TYPES = RESTORE_SWITCHABLE,
   RESTORE_TYPES,
 } RestorationType;
+#endif  // CONFIG_LOOP_RESTORATION
+
 #if CONFIG_FRAME_SUPERRES
 #define SUPERRES_SCALE_DENOMINATOR 16
 #define SUPERRES_SCALE_BITS 3
 #define SUPERRES_SCALE_NUMERATOR_MIN 8
 #endif  // CONFIG_FRAME_SUPERRES
-#endif  // CONFIG_LOOP_RESTORATION
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif