Revert "Flesh out emscripten metadata (emscripten-core#8519)"

This reverts commit c25f8bc.

tools/shared.py

@@ -518,7 +518,7 @@ def get_emscripten_version(path):
 # For the Emscripten-specific WASM metadata section, follows semver, changes
 # whenever metadata section changes structure
 # NB: major version 0 implies no compatibility
-(EMSCRIPTEN_METADATA_MAJOR, EMSCRIPTEN_METADATA_MINOR) = (0, 1)
+(EMSCRIPTEN_METADATA_MAJOR, EMSCRIPTEN_METADATA_MINOR) = (0, 0)
 # For the JS/WASM ABI, specifies the minimum ABI version required of
 # the WASM runtime implementation by the generated WASM binary. It follows
 # semver and changes whenever C types change size/signedness or
@@ -2979,20 +2979,8 @@ def delebify(buf, offset):
 
   @staticmethod
   def add_emscripten_metadata(js_file, wasm_file):
-    WASM_PAGE_SIZE = 65536
-
-    mem_size = Settings.TOTAL_MEMORY // WASM_PAGE_SIZE
+    mem_size = Settings.STATIC_BUMP
     table_size = Settings.WASM_TABLE_SIZE
-    global_base = Settings.GLOBAL_BASE
-
-    js = open(js_file).read()
-    m = re.search(r"(^|\s)tempDoublePtr\s+=\s+(\d+)", js)
-    tempdouble_ptr = int(m.group(2))
-    m = re.search(r"(^|\s)DYNAMIC_BASE\s+=\s+(\d+)", js)
-    dynamic_base = int(m.group(2))
-    m = re.search(r"(^|\s)DYNAMICTOP_PTR\s+=\s+(\d+)", js)
-    dynamictop_ptr = int(m.group(2))
-
     logger.debug('creating wasm emscripten metadata section with mem size %d, table size %d' % (mem_size, table_size,))
     name = b'\x13emscripten_metadata' # section name, including prefixed size
     contents = (
@@ -3006,13 +2994,11 @@ def add_emscripten_metadata(js_file, wasm_file):
       WebAssembly.lebify(EMSCRIPTEN_ABI_MAJOR) +
       WebAssembly.lebify(EMSCRIPTEN_ABI_MINOR) +
 
+      # static bump
       WebAssembly.lebify(mem_size) +
-      WebAssembly.lebify(table_size) +
-      WebAssembly.lebify(global_base) +
-      WebAssembly.lebify(dynamic_base) +
-      WebAssembly.lebify(dynamictop_ptr) +
-      WebAssembly.lebify(tempdouble_ptr)
 
+      # table size
+      WebAssembly.lebify(table_size)
       # NB: more data can be appended here as long as you increase
       #     the EMSCRIPTEN_METADATA_MINOR
     )