Bug 1607697 - Remove leading zeros in dither matrix litterals. r=Gankro

Addresses a clippy lint.

Differential Revision: https://phabricator.services.mozilla.com/D59112

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/6c1778a36720e182351c6f24666f04e5a481f98b

webrender/src/renderer.rs

@@ -2027,11 +2027,11 @@ impl Renderer {
 
         let dither_matrix_texture = if options.enable_dithering {
             let dither_matrix: [u8; 64] = [
-                00,
+                0,
                 48,
                 12,
                 60,
-                03,
+                3,
                 51,
                 15,
                 63,
@@ -2043,13 +2043,13 @@ impl Renderer {
                 19,
                 47,
                 31,
-                08,
+                8,
                 56,
-                04,
+                4,
                 52,
                 11,
                 59,
-                07,
+                7,
                 55,
                 40,
                 24,
@@ -2059,11 +2059,11 @@ impl Renderer {
                 27,
                 39,
                 23,
-                02,
+                2,
                 50,
                 14,
                 62,
-                01,
+                1,
                 49,
                 13,
                 61,
@@ -2077,11 +2077,11 @@ impl Renderer {
                 29,
                 10,
                 58,
-                06,
+                6,
                 54,
-                09,
+                9,
                 57,
-                05,
+                5,
                 53,
                 42,
                 26,