Fix some strings in the .NET manifest file (bug 226967). patch by sipaq, r=me.

browser/app/MozillaFirebird.exe.manifest

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-<assemblyIdentity
-        version="1.0.0.0"
-        processorArchitecture="X86"
-        name="Microsoft.Winweb.MantaRay"
-        type="win32"
-/>
-<description>.NET control deployment tool</description>
-<dependency>
-        <dependentAssembly>
-                <assemblyIdentity
-                        type="win32"
-                        name="Microsoft.Windows.Common-Controls"
-                        version="6.0.0.0"
-                        processorArchitecture="X86"
-                        publicKeyToken="6595b64144ccf1df"
-                        language="*"
-                />
-        </dependentAssembly>
-</dependency>
-</assembly>