Remove gencpp_c11 for now (not using yet, maybe I'll do a truncated version)

Prepparing to explore Lottes's C-- more, also how crufty it looks in odin.

C/watl.v0.llvm.lottes.c

@@ -0,0 +1,61 @@
+/*
+WATL Exercise
+Version:   0 (From Scratch, 1-Stage Compilation, LLVM & WinAPI Only, Win CRT Multi-threaded Static Linkage)
+Host:      Windows 11 (x86-64)
+Toolchain: LLVM (2025-08-30), C-Stanard: 11
+
+Following strictly: Neokineogfx - Fixing C
+https://youtu.be/RrL7121MOeA
+*/
+
+#pragma clang diagnostic ignored "-Wunused-const-variable"
+#pragma clang diagnostic ignored "-Wunused-but-set-variable"
+#pragma clang diagnostic ignored "-Wswitch"
+#pragma clang diagnostic ignored "-Wunused-variable"
+#pragma clang diagnostic ignored "-Wunknown-pragmas"
+#pragma clang diagnostic ignored "-Wvarargs"
+#pragma clang diagnostic ignored "-Wunused-function"
+#pragma clang diagnostic ignored "-Wbraced-scalar-init"
+#pragma clang diagnostic ignored "-W#pragma-messages"
+#pragma clang diagnostic ignored "-Wstatic-in-inline"
+#pragma clang diagnostic ignored "-Wkeyword-macro"
+#pragma clang diagnostic ignored "-Wc23-compat"
+#pragma clang diagnostic ignored "-Wreserved-identifier"
+#pragma clang diagnostic ignored "-Wpre-c11-compat"
+#pragma clang diagnostic ignored "-Wc23-extensions"
+#pragma clang diagnostic ignored "-Wunused-macros"
+#pragma clang diagnostic ignored "-Wdeclaration-after-statement"
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
+#pragma clang diagnostic ignored "-Wc++-keyword"
+#pragma clang diagnostic ignored "-Wimplicit-function-declaration"
+#pragma clang diagnostic ignored "-Wcast-align"
+#pragma clang diagnostic ignored "-Wunused-parameter"
+#pragma clang diagnostic ignored "-Wswitch-default"
+#pragma clang diagnostic ignored "-Wmissing-field-initializers"
+#pragma clang diagnostic ignored "-Wgnu-zero-variadic-macro-arguments"
+#pragma clang diagnostic ignored "-Wpointer-sign"
+
+#pragma region Header
+
+#pragma region DSL
+#define A_(x)   __attribute__((aligned (x)))
+#define E_(x,y) __builtin_expect(x,y)
+#define S_      static
+#define I_      static inline __attribute__((always_inline))
+#define N_      static        __attribute__((noinline))
+#define R_      __restrict                                     
+#define V_      volatile                                       
+#define W_      __attribute((__stdcall__)) __attribute__((__force_align_arg_pointer__))
+#pragma endregion DSL
+
+#pragma endregion Header
+
+#pragma region Implementation
+#pragma endregion Implementation
+
+int main(void)
+{
+	return 0;
+}
+
+#pragma clang diagnostic pop