Revert "Add --rust-target to replace --unstable-rust"

This reverts commit 0bb7b9f1c4652f63f41eba4064b79c044fd3d955.

It turns out our CI stopped running test expectations in an earlier
regression (from d73507e; fix incoming) and so this pull request actually
introduced a bunch of failures when compiling the test expectations and running
their unit tests :(

1 files changed, 0 insertions, 44 deletions

diff --git a/tests/headers/class_with_inner_struct_1_0.hpp b/tests/headers/class_with_inner_struct_1_0.hpp
deleted file mode 100644
index 5145337f..00000000
--- a/tests/headers/class_with_inner_struct_1_0.hpp
+++ /dev/null
@@ -1,44 +0,0 @@
-// bindgen-flags: --rust-target 1.0 -- -std=c++11
-
-
-class A {
-    unsigned c;
-    struct Segment { int begin, end; };
-    union {
-        int f;
-    } named_union;
-    union {
-        int d;
-    };
-};
-
-class B {
-    unsigned d;
-    struct Segment { int begin, end; };
-};
-
-
-enum class StepSyntax {
-    Keyword,                     // step-start and step-end
-    FunctionalWithoutKeyword,    // steps(...)
-    FunctionalWithStartKeyword,  // steps(..., start)
-    FunctionalWithEndKeyword,    // steps(..., end)
-};
-
-class C {
-    unsigned d;
-    union {
-        struct {
-            float mX1;
-            float mY1;
-            float mX2;
-            float mY2;
-        } mFunc;
-        struct {
-            StepSyntax mStepSyntax;
-            unsigned int mSteps;
-        };
-    };
-    // To ensure it doesn't collide
-    struct Segment { int begin, end; };
-};