Remove duplicated WebGL layout tests.

third_party/WebKit/LayoutTests/fast/canvas/webgl/attrib-location-length-limits-expected.txt

Index: third_party/WebKit/LayoutTests/fast/canvas/webgl/attrib-location-length-limits-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/attrib-location-length-limits-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/attrib-location-length-limits-expected.txt
deleted file mode 100644
index b3450e43c558e1cca71485307d2f10621faa8330..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/attrib-location-length-limits-expected.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Verify limits on the lengths of attrib locations.
-Test attrib location underneath the length limit
-PASS gl.getProgramParameter(program, gl.LINK_STATUS) is true
-PASS attrib location should not be -1
-PASS getError was expected value: NO_ERROR : 
-Test attrib location exactly at the length limit
-PASS gl.getProgramParameter(program, gl.LINK_STATUS) is true
-PASS attrib location should not be -1
-PASS getError was expected value: NO_ERROR : 
-Test attrib location over the length limit
-Shader compilation should fail
-PASS wtu.loadShaderFromScript(gl, "badVertexShader", gl.VERTEX_SHADER, function (err) {}) is null
-PASS getError was expected value: NO_ERROR : 
-Attempt to bind too-long attrib location should produce error
-PASS getError was expected value: INVALID_VALUE : 
-Attempt to fetch too-long attrib location should produce error
-PASS gl.getAttribLocation(program, "vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567") is -1
-PASS getError was expected value: INVALID_VALUE : 
-PASS successfullyParsed is true
-
-TEST COMPLETE
-