Remove the (deprecated) isOpaque parameter when making SkSL shaders

SkSL now deduces this, so the parameter does nothing, and is going away.

Bug: 217753125
Change-Id: I673537a9900b5d3219f3914b3b93e0b5e97329db
Test: Removal of unused parameter. Existing tests still pass.
diff --git a/libs/hwui/jni/Shader.cpp b/libs/hwui/jni/Shader.cpp
index 899c7d4..0bbd8a8 100644
--- a/libs/hwui/jni/Shader.cpp
+++ b/libs/hwui/jni/Shader.cpp
@@ -264,7 +264,7 @@
 static jlong RuntimeShader_create(JNIEnv* env, jobject, jlong shaderBuilder, jlong matrixPtr) {
     SkRuntimeShaderBuilder* builder = reinterpret_cast<SkRuntimeShaderBuilder*>(shaderBuilder);
     const SkMatrix* matrix = reinterpret_cast<const SkMatrix*>(matrixPtr);
-    sk_sp<SkShader> shader = builder->makeShader(matrix, false);
+    sk_sp<SkShader> shader = builder->makeShader(matrix);
     ThrowIAE_IfNull(env, shader);
     return reinterpret_cast<jlong>(shader.release());
 }