[core] Revert line-round-limit default to 1 (#5260)

Refs #5258, #5234.

scripts/generate-style-code.js

@@ -46,6 +46,11 @@ global.propertyType = function (property) {
 }
 
 global.defaultValue = function (property) {
+  // https://github.com/mapbox/mapbox-gl-native/issues/5258
+  if (property.name === 'line-round-limit') {
+    return 1;
+  }
+
   switch (property.type) {
   case 'number':
     return property.default;

src/mbgl/style/layers/line_layer_properties.hpp

@@ -20,7 +20,7 @@ public:
     LayoutProperty<LineCapType> lineCap { LineCapType::Butt };
     LayoutProperty<LineJoinType> lineJoin { LineJoinType::Miter };
     LayoutProperty<float> lineMiterLimit { 2 };
-    LayoutProperty<float> lineRoundLimit { 1.05 };
+    LayoutProperty<float> lineRoundLimit { 1 };
 };
 
 class LinePaintProperties {