examples: clean up mask resources.

These are not proper for our svg examples.

src/examples/Svg.cpp

@@ -5,8 +5,8 @@
 /* Drawing Commands                                                     */
 /************************************************************************/
 
-#define NUM_PER_LINE 5
-#define SIZE 160
+#define NUM_PER_LINE 4
+#define SIZE 200
 
 static int count = 0;
 

src/examples/images/mask-gradient.svg

@@ -1,13 +0,0 @@
-<svg version="1.1" id="Layer_1" viewBox="0 0 64 64" enable-background="new 0 0 64 64" xml:space="preserve"
-  xmlns="http://www.w3.org/2000/svg">
-  <defs>
-        <linearGradient x1="29%" y1="36%" x2="77%" y2="63%" id="linearGradient">
-            <stop stop-color="#0000FF" offset="0%"></stop>
-            <stop stop-color="#FF0000" offset="100%"></stop>
-        </linearGradient>
-    <mask id="myMask">
-      <circle id="maskID" cx="40" cy="40" r="10" fill="white" fill-opacity="1" />
-    </mask>
-  </defs>
-  <rect x="0" y="0" width="64" height="64" fill="url(#linearGradient)" mask="url(#myMask)"/>
-</svg>

src/examples/images/mask.svg

@@ -1,8 +0,0 @@
-<svg version="1.1" baseProfile="basic" id="svg" xmlns:svg="http://www.w3.org/2000/svg"
-         xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="900px" height="900px"
-         viewBox="0 0 900 900" xml:space="preserve">
-  <mask id="myMask">
-      <circle id="maskID" cx="450" cy="450" r="200" fill="white" fill-opacity="1" />
-  </mask>
-  <rect x="0" y="0" width="900" height="900" fill="blue" mask="url(#myMask)"/> 
-</svg>