Remove large swaths of code related to .fp files

Change-Id: Id2061ebe7873aa8b9480a2d8b0133c2fb79e79bb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/424098
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/src/sksl/codegen/SkSLSPIRVCodeGenerator.cpp b/src/sksl/codegen/SkSLSPIRVCodeGenerator.cpp
index 8d9c074..16e5f51 100644
--- a/src/sksl/codegen/SkSLSPIRVCodeGenerator.cpp
+++ b/src/sksl/codegen/SkSLSPIRVCodeGenerator.cpp
@@ -3051,9 +3051,7 @@
                                              /*inputAttachmentIndex=*/-1,
                                              Layout::kUnspecified_Primitive,
                                              /*maxVertices=*/1,
-                                             /*invocations=*/-1,
-                                             /*when=*/"",
-                                             Layout::CType::kDefault),
+                                             /*invocations=*/-1),
                                       /*flags=*/0),
                             SKSL_RTFLIP_NAME,
                             fContext.fTypes.fFloat2.get());
@@ -3590,9 +3588,7 @@
                                          /*inputAttachmentIndex=*/-1,
                                          Layout::kUnspecified_Primitive,
                                          /*maxVertices=*/1,
-                                         /*invocations=*/-1,
-                                         /*when=*/"",
-                                         Layout::CType::kDefault),
+                                         /*invocations=*/-1),
                                   /*flags=*/0),
                         SKSL_RTFLIP_NAME,
                         fContext.fTypes.fFloat2.get());
@@ -3622,9 +3618,7 @@
                                /*inputAttachmentIndex=*/-1,
                                Layout::kUnspecified_Primitive,
                                /*maxVertices=*/-1,
-                               /*invocations=*/-1,
-                               /*when=*/"",
-                               Layout::CType::kDefault),
+                               /*invocations=*/-1),
                         Modifiers::kUniform_Flag);
     const Modifiers* modsPtr = fProgram.fModifiers->add(modifiers);
     if (fProgram.fPool) {